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A record player is plugged in, uniformly accelerates to 45 revolutions per minute, and then is unplugged. The record player (a) takes 0.85 seconds to get up to speed, (b) spends 3.37 seconds at 45 rpms, and then (c) takes 2.32 seconds to slow down to a stop. What is the average angular acceleration of the record player during all three parts? Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:08 Translating the problem 2:35 Solving part (a)  angular acceleration while speeding up 3:13 Solving part (b)  angular acceleration at a constant angular velocity 3:57 Solving part (c)  angular acceleration while slowing down 4:36 Reflecting on all 3 parts simultaneously Multilingual? Please help translate Flipping Physics videos! Next Video: Uniformly Angularly Accelerated Motion Introduction Previous Video: Angular Acceleration Introduction Please support me on Patreon! Thank you to Aarti Sangwan, Scott Carter, and Christopher Becke for being my Quality Control team for this video.

 average
 acceleration
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Name: Angular Accelerations of a Record Player Category: Rotational Motion Date Added: 20170711 Submitter: Flipping Physics A record player is plugged in, uniformly accelerates to 45 revolutions per minute, and then is unplugged. The record player (a) takes 0.85 seconds to get up to speed, (b) spends 3.37 seconds at 45 rpms, and then (c) takes 2.32 seconds to slow down to a stop. What is the average angular acceleration of the record player during all three parts? Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:08 Translating the problem 2:35 Solving part (a)  angular acceleration while speeding up 3:13 Solving part (b)  angular acceleration at a constant angular velocity 3:57 Solving part (c)  angular acceleration while slowing down 4:36 Reflecting on all 3 parts simultaneously Multilingual? Please help translate Flipping Physics videos! Next Video: Uniformly Angularly Accelerated Motion Introduction Previous Video: Angular Acceleration Introduction Please support me on Patreon! Thank you to Aarti Sangwan, Scott Carter, and Christopher Becke for being my Quality Control team for this video. Angular Accelerations of a Record Player

 average
 acceleration
 (and 11 more)

Angular acceleration is introduced by way of linear acceleration. The units of radians per second squared are discussed. Examples of objects which angular acceleration are shown. Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:23 Average angular acceleration 1:02 Angular acceleration units 1:37 Demonstrating objects which have angular acceleration Multilingual? Please help translate Flipping Physics videos! Next Video: Angular Accelerations of a Record Player Previous Video: Introductory Angular Velocity Problem  A Turning Bike Tire Please support me on Patreon! Thank you to Aarti Sangwan, Scott Carter, and Christopher Becke for being my Quality Control team for this video.

 radians per second squared
 revolutions
 (and 8 more)

The wheel of a bike rotates exactly 3 times in 12.2 seconds. What is the average angular velocity of the wheel in (a) radians per second and (b) revolutions per minute? Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:08 Translating the problem 1:32 Solving for the angular velocity in radians per second 2:22 Converting from radians per second to revolutions per minute 3:24 Three common mistakes made by students when doing this conversion. 4:37 Alternate and easier solution for part b Multilingual? Please help translate Flipping Physics videos! Next Video: Angular Acceleration Introduction Previous Video: Angular Velocity Introduction Please support me on Patreon! Thank you to Scott Carter and Christopher Becke for being my Quality Control team for this video.

Name: Angular Acceleration Introduction Category: Rotational Motion Date Added: 20170711 Submitter: Flipping Physics Angular acceleration is introduced by way of linear acceleration. The units of radians per second squared are discussed. Examples of objects which angular acceleration are shown. Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:23 Average angular acceleration 1:02 Angular acceleration units 1:37 Demonstrating objects which have angular acceleration Multilingual? Please help translate Flipping Physics videos! Next Video: Angular Accelerations of a Record Player Previous Video: Introductory Angular Velocity Problem  A Turning Bike Tire Please support me on Patreon! Thank you to Aarti Sangwan, Scott Carter, and Christopher Becke for being my Quality Control team for this video. Angular Acceleration Introduction

 radians per second squared
 revolutions
 (and 8 more)

The equation for average angular velocity is presented in relation to the equation for average linear velocity. Radians per second and revolutions per minute are discusses as the units for angular velocity. Objects which have angular velocity are shows. Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:09 Average linear velocity 0:22 Average angular velocity 0:53 The units for angular velocity 1:37 Examples of objects with angular velocity Multilingual? Please help translate Flipping Physics videos! Next Video: Introductory Angular Velocity Problem  A Turning Bike Tire Previous Video: Introductory Arc Length Problem  Gum on a Bike Tire Please support me on Patreon! Thank you to Scott Carter and Christopher Becke for being my Quality Control team for this video.

 rotations
 radians per second
 (and 9 more)

Name: Introductory Angular Velocity Problem  A Turning Bike Tire Category: Rotational Motion Date Added: 20170626 Submitter: Flipping Physics The wheel of a bike rotates exactly 3 times in 12.2 seconds. What is the average angular velocity of the wheel in (a) radians per second and (b) revolutions per minute? Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:08 Translating the problem 1:32 Solving for the angular velocity in radians per second 2:22 Converting from radians per second to revolutions per minute 3:24 Three common mistakes made by students when doing this conversion. 4:37 Alternate and easier solution for part b Multilingual? Please help translate Flipping Physics videos! Next Video: Angular Acceleration Introduction Previous Video: Angular Velocity Introduction Please support me on Patreon! Thank you to Scott Carter and Christopher Becke for being my Quality Control team for this video. Introductory Angular Velocity Problem  A Turning Bike Tire

 angular
 angular velocity
 (and 17 more)

Video Discussion: Angular Velocity Introduction
Flipping Physics posted a topic in Video Discussions
Name: Angular Velocity Introduction Category: Rotational Motion Date Added: 20170619 Submitter: Flipping Physics The equation for average angular velocity is presented in relation to the equation for average linear velocity. Radians per second and revolutions per minute are discusses as the units for angular velocity. Objects which have angular velocity are shows. Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:09 Average linear velocity 0:22 Average angular velocity 0:53 The units for angular velocity 1:37 Examples of objects with angular velocity Multilingual? Please help translate Flipping Physics videos! Next Video: Introductory Angular Velocity Problem  A Turning Bike Tire Previous Video: Introductory Arc Length Problem  Gum on a Bike Tire Please support me on Patreon! Thank you to Scott Carter and Christopher Becke for being my Quality Control team for this video. Angular Velocity Introduction
 radians per second
 rotations
 (and 9 more)

Calculus based review of instantaneous and average angular velocity and acceleration, uniformly angularly accelerated motion, arc length, the derivation of tangential velocity, the derivation of tangential acceleration, uniform circular motion, centripetal acceleration, centripetal force, nonuniform circular motion, and the derivation of the relationship between angular velocity and period. For the calculus based AP Physics C mechanics exam. Want Lecture Notes? Content Times: 0:10 Instantaneous and Average Angular Velocity and Acceleration 1:14 Uniformly Angularly Accelerated Motion 2:16 Arc Length 3:22 Tangential Velocity Derivation 4:29 Tangential Acceleration Derivation 6:03 Uniform Circular Motion and Centripetal Acceleration 8:04 Centripetal Force 9:20 NonUniform Circular Motion 10:21 Angular Velocity and Period Relationship Derivation Multilingual? Please help translate Flipping Physics videos! AP Physics C Review Website Next Video: AP Physics C: Rotational Dynamics Review  1 of 2 (Mechanics) Previous Video: AP Physics C: Momentum, Impulse, Collisions and Center of Mass Review (Mechanics) Please support me on Patreon! Thank you to Natasha Trousdale, Aarti Sangwan, and Jen Larson for being my Quality Control team for this video.

 centripetal acceleration
 centripetal
 (and 13 more)

Name: AP Physics C: Rotational Kinematics Review (Mechanics) Category: Uniform Circular Motion Date Added: 20170409 Submitter: Flipping Physics Calculus based review of instantaneous and average angular velocity and acceleration, uniformly angularly accelerated motion, arc length, the derivation of tangential velocity, the derivation of tangential acceleration, uniform circular motion, centripetal acceleration, centripetal force, nonuniform circular motion, and the derivation of the relationship between angular velocity and period. For the calculus based AP Physics C mechanics exam. Want Lecture Notes? Content Times: 0:10 Instantaneous and Average Angular Velocity and Acceleration 1:14 Uniformly Angularly Accelerated Motion 2:16 Arc Length 3:22 Tangential Velocity Derivation 4:29 Tangential Acceleration Derivation 6:03 Uniform Circular Motion and Centripetal Acceleration 8:04 Centripetal Force 9:20 NonUniform Circular Motion 10:21 Angular Velocity and Period Relationship Derivation Multilingual? Please help translate Flipping Physics videos! AP Physics C Review Website Next Video: AP Physics C: Rotational Dynamics Review  1 of 2 (Mechanics) Previous Video: AP Physics C: Momentum, Impulse, Collisions and Center of Mass Review (Mechanics) Please support me on Patreon! Thank you to Natasha Trousdale, Aarti Sangwan, and Jen Larson for being my Quality Control team for this video. AP Physics C: Rotational Kinematics Review (Mechanics)

 centripetal acceleration
 centripetal
 (and 13 more)

Review of conversions, velocity, acceleration, instantaneous and average velocity and acceleration, uniformly accelerated motion, free fall and free fall graphs, component vectors, vector addition, unit vectors, relative velocity and projectile motion. For the calculus based AP Physics C mechanics exam. Want Lecture Notes? Content Times: 0:12 Introductory Concepts 2:07 Velocity and Acceleration 3:03 Uniformly Accelerated Motion 6:51 Free Fall 7:45 Free Fall Graphs 9:16 Component Vectors 10:58 Unit Vectors 13:09 Relative Velocity 13:51 Projectile Motion Next Video: AP Physics C: Dynamics Review (Mechanics) Multilingual? Please help translate Flipping Physics videos! AP Physics C Review Websitel Please support me on Patreon! Thank you to my Quality Control help: Jen Larsen, Scott Carter, Natasha Trousdale and Aarti Sangwan

 projectile motion
 vectors
 (and 8 more)

Name: AP Physics C: Kinematics Review (Mechanics) Category: Kinematics Date Added: 20170316 Submitter: Flipping Physics Review of conversions, velocity, acceleration, instantaneous and average velocity and acceleration, uniformly accelerated motion, free fall and free fall graphs, component vectors, vector addition, unit vectors, relative velocity and projectile motion. For the calculus based AP Physics C mechanics exam. Want Lecture Notes? Content Times: 0:12 Introductory Concepts 2:07 Velocity and Acceleration 3:03 Uniformly Accelerated Motion 6:51 Free Fall 7:45 Free Fall Graphs 9:16 Component Vectors 10:58 Unit Vectors 13:09 Relative Velocity 13:51 Projectile Motion Next Video: AP Physics C: Dynamics Review (Mechanics) Multilingual? Please help translate Flipping Physics videos! AP Physics C Review Websitel Please support me on Patreon! Thank you to my Quality Control help: Jen Larsen, Scott Carter, Natasha Trousdale and Aarti Sangwan AP Physics C: Kinematics Review (Mechanics)

 projectile motion
 vectors
 (and 8 more)

Name: Calculating Average Drag Force on an Accelerating Car using an Integral Category: Dynamics Date Added: 20160811 Submitter: Flipping Physics A vehicle uniformly accelerates from rest to 3.0 x 10^1 km/hr in 9.25 seconds and 42 meters. Determine the average drag force acting on the vehicle. Want lecture notes? This is an AP Physics C Topic. Content Times: 0:14 The Drag Force equation 0:39 The density of air 1:33 The drag coefficient 1:59 The cross sectional area 3:11 Determining instantaneous speed 4:08 Instantaneous Drag Force 4:36 Graphing Drag Force as a function of Time 5:17 The definite integral of drag force with respect to time 5:42 Average Drag Force times Total Change in Time Next Video: Instantaneous Power Delivered by a Car Engine  Example Problem Multilingual? Please help translate Flipping Physics videos! Previous Video: Average Power Delivered by a Car Engine  Example Problem Please support me on Patreon! Calculating Average Drag Force on an Accelerating Car using an Integral

A vehicle uniformly accelerates from rest to 3.0 x 10^1 km/hr in 9.25 seconds and 42 meters. Determine the average drag force acting on the vehicle. Want lecture notes? This is an AP Physics C Topic. Content Times: 0:14 The Drag Force equation 0:39 The density of air 1:33 The drag coefficient 1:59 The cross sectional area 3:11 Determining instantaneous speed 4:08 Instantaneous Drag Force 4:36 Graphing Drag Force as a function of Time 5:17 The definite integral of drag force with respect to time 5:42 Average Drag Force times Total Change in Time Next Video: Instantaneous Power Delivered by a Car Engine  Example Problem Multilingual? Please help translate Flipping Physics videos! Previous Video: Average Power Delivered by a Car Engine  Example Problem Please support me on Patreon!

A 1400 kg Prius uniformly accelerates from rest to 30 km/hr in 9.25 seconds and 42 meters. If an average force of drag of 8.0 N acts on the car, what is the average power developed by the engine in horsepower? Want Lecture Notes? This is an AP Physics 1 Topic. Content Times: 0:15 Translating the example to physics 2:13 The equation for power 3:37 Drawing the Free Body Diagram and summing the forces 4:47 Solving for acceleration and Force Applied 5:43 Determining theta 6:01 Solving for Average Power 6:53 Understanding our answer 7:34 The Horse Pedal 9:13 Comparing to a larger acceleration example Next Video: Instantaneous Power Delivered by a Car Engine  Example Problem Multilingual? Please help translate Flipping Physics videos! Previous Video: Graphing Instantaneous Power Please support me on Patreon!

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Name: Average Power Delivered by a Car Engine  Example Problem Category: Work, Energy, Power Date Added: 20160728 Submitter: Flipping Physics A 1400 kg Prius uniformly accelerates from rest to 30 km/hr in 9.25 seconds and 42 meters. If an average force of drag of 8.0 N acts on the car, what is the average power developed by the engine in horsepower? Want Lecture Notes? This is an AP Physics 1 Topic. Content Times: 0:15 Translating the example to physics 2:13 The equation for power 3:37 Drawing the Free Body Diagram and summing the forces 4:47 Solving for acceleration and Force Applied 5:43 Determining theta 6:01 Solving for Average Power 6:53 Understanding our answer 7:34 The Horse Pedal 9:13 Comparing to a larger acceleration example Next Video: Instantaneous Power Delivered by a Car Engine  Example Problem Multilingual? Please help translate Flipping Physics videos! Previous Video: Graphing Instantaneous Power Please support me on Patreon! Average Power Delivered by a Car Engine  Example Problem

An 8.53 kg pumpkin is dropped from a height of 8.91 m. What is the power delivered by the force of gravity (a) over the whole displacement of the pumpkin, (b) right after the pumpkin is dropped and (c) right before the pumpkin strikes the ground? Want Lecture Notes? This is an AP Physics 1 Topic. Content Times: 0:16 The example 1:26 Visualizing the example 2:22 Part (a) 3:32 Solving for Δt 5:32 Alternate solution to part (a) 6:33 Average vs. Instantaneous Power Equations 7:45 Part (b) 8:12 Part (c) Next Video: Graphing Instantaneous Power Multilingual? Please help translate Flipping Physics videos! Previous Video: Introduction to Power Please support me on Patreon!

 horsepower
 instantaneous

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Name: Average and Instantaneous Power Example Category: Work, Energy, Power Date Added: 20160602 Submitter: Flipping Physics An 8.53 kg pumpkin is dropped from a height of 8.91 m. What is the power delivered by the force of gravity (a) over the whole displacement of the pumpkin, (b) right after the pumpkin is dropped and (c) right before the pumpkin strikes the ground? Want Lecture Notes? This is an AP Physics 1 Topic. Content Times: 0:16 The example 1:26 Visualizing the example 2:22 Part (a) 3:32 Solving for Δt 5:32 Alternate solution to part (a) 6:33 Average vs. Instantaneous Power Equations 7:45 Part (b) 8:12 Part (c) Next Video: Graphing Instantaneous Power Multilingual? Please help translate Flipping Physics videos! Previous Video: Introduction to Power Please support me on Patreon! Average and Instantaneous Power Example

Students often get confused by the difference between Instantaneous and Average. In this video we use a graph to compare and understand the two different concepts. Content Times: 0:28 Defining Instantaneous and Average Velocity 0:52 Examples of Each 2:23 The Graph 2:42 Walking the Graph (my favorite part) 3:19 Average Velocity from 0  5 Seconds 5:30 Average Velocity from 5  10 Seconds 6:45 Some Instantaneous Velocities 7:44 Average Velocity from 0  17 Seconds 8:37 Drawing this Average Velocity on the Graph 9:15 Comparing Average Velocity to Instantaneous Velocity 10:32 What was the Instantaneous Velocity at exactly 5 seconds? 11:47 The Review [url="http://www.flippingphysics.com/instantaneousandaveragevelocity.html"]Want Lecture Notes?[/url] [url="http://www.flippingphysics.com/thehumilitysoapboxndashuniformlyvsuniformally.html"]Previous Video: The Humility Soapbox  Uniformly vs. Uniformally[/url] [url="http://www.flippingphysics.com/graphicaluamexample.html"]Next Video: Graphical UAM Example Problem[/url]

 instantaneous
 average

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Name: Understanding Instantaneous and Average Velocity using a Graph Category: Kinematics Date Added: 21 May 2014  03:47 PM Submitter: Flipping Physics Short Description: None Provided Students often get confused by the difference between Instantaneous and Average. In this video we use a graph to compare and understand the two different concepts. Content Times: 0:28 Defining Instantaneous and Average Velocity 0:52 Examples of Each 2:23 The Graph 2:42 Walking the Graph (my favorite part) 3:19 Average Velocity from 0  5 Seconds 5:30 Average Velocity from 5  10 Seconds 6:45 Some Instantaneous Velocities 7:44 Average Velocity from 0  17 Seconds 8:37 Drawing this Average Velocity on the Graph 9:15 Comparing Average Velocity to Instantaneous Velocity 10:32 What was the Instantaneous Velocity at exactly 5 seconds? 11:47 The Review View Video

 instantaneous
 average

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This video is an example problem that walks through finding the average speed for the last 2 laps of the 4 lap qualifier for the Indianapolis 500 assuming an average speed for the first 2 laps. It is actually more difficult than it initially appears. Content Times: 0:36 Reading the Problem 1:06 Translating to Physics 3:25 A Visual representation of our Known Values 4:07 Beginning to Solve the Problem 5:27 Finding the Time for Part 1 7:15 Finding the Total Time 9:00 Finding the Time for Part 2 10:15 Finding the Average Speed for Part 2 10:45 A Common Mistake 12:07 The Answer 13:15 A Question about Significant Digits [url="http://www.flippingphysics.com/exampleproblemfindingaveragespeedforpolepositionndashnotaseasyasyouthink.html"]Want Lecture Notes?[/url] Next Video: [url="http://www.flippingphysics.com/introductiontoaccelerationwithpriusbrakeslammingexampleproblem.html"]Introduction to Acceleration with Prius Brake Slamming Example Problem[/url] Previous Video: [url="http://www.flippingphysics.com/understandingandwalkinggraphsofpositionasafunctionoftime.html"]Understanding and Walking Position as a function of Time Graphs[/url]

Name: Finding Average Speed for Pole Position: Example Problem  Not as easy as you may think Category: Kinematics Date Added: 21 May 2014  08:50 AM Submitter: Flipping Physics Short Description: None Provided This video is an example problem that walks through finding the average speed for the last 2 laps of the 4 lap qualifier for the Indianapolis 500 assuming an average speed for the first 2 laps. It is actually more difficult than it initially appears. Content Times: 0:36 Reading the Problem 1:06 Translating to Physics 3:25 A Visual representation of our Known Values 4:07 Beginning to Solve the Problem 5:27 Finding the Time for Part 1 7:15 Finding the Total Time 9:00 Finding the Time for Part 2 10:15 Finding the Average Speed for Part 2 10:45 A Common Mistake 12:07 The Answer 13:15 A Question about Significant Digits View Video

Average Velocity Example Problem with Three Velocities
Flipping Physics posted a video in Kinematics
This example problem works through finding the average velocity when we have multiple parts to the givens. It involves splitting the given information into separate parts, finding the total displacement, the total time and then the total average velocity. Content Times: 0:23 Reading the Problem 0:56 Translating the problem to physics 1:47 Splitting the givens into three parts 3:58 A plea to slow down when solving problems 5:13 Putting the givens in to a table 5:53 Beginning to solve the problem 6:59 Solving for the individual displacements 8:39 Finding the total displacement 9:33 Finding the total average velocity 10:58 A incorrect way to solve for average velocity 12:20 Outtakes [url="http://www.flippingphysics.com/averagevelocityexampleproblemwiththreevelocities.html"]Want Lecture Notes?[/url] Next Video: [url="http://www.flippingphysics.com/exampleproblemvelocityandspeedaredifferent.html"]Example Problem: Velocity and Speed are Different[/url] Previous Video: [url="http://www.flippingphysics.com/introductiontovelocityandspeed.html"]Introduction to Velocity and Speed and the differences between the two.[/url] 
Name: Average Velocity Example Problem with Three Velocities Category: Kinematics Date Added: 21 May 2014  08:45 AM Submitter: Flipping Physics Short Description: None Provided This example problem works through finding the average velocity when we have multiple parts to the givens. It involves splitting the given information into separate parts, finding the total displacement, the total time and then the total average velocity. Content Times: 0:23 Reading the Problem 0:56 Translating the problem to physics 1:47 Splitting the givens into three parts 3:58 A plea to slow down when solving problems 5:13 Putting the givens in to a table 5:53 Beginning to solve the problem 6:59 Solving for the individual displacements 8:39 Finding the total displacement 9:33 Finding the total average velocity 10:58 A incorrect way to solve for average velocity 12:20 Outtakes View Video

This video introduces the definition of Velocity. It also walks through a simple, introductory average velocity example problem. At the end it defines speed and discusses the difference between speed and velocity. Content Times: (click to skip to that time) 0:18 Velocity Definition 2:12 Velocity has both Magnitude and Direction 3:06 Example Problem 8:41 Speed Definition 9:15 Differences between Speed and Velocity 11:00 Outtakes [url="http://www.flippingphysics.com/introductiontovelocityandspeed.html"]Want Lecture Notes?[/url] Next Video: [url="http://www.flippingphysics.com/averagevelocityexampleproblemwiththreevelocities.html"]Average Velocity Example Problem with Three Velocities[/url] Previous Video: [url="http://www.flippingphysics.com/introductiontodisplacement.html"]Introduction to Displacement and the Differences Between Displacement and Distance[/url]
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