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What is the minimum angular speed necessary to keep water in a vertically revolving bucket? The rope radius is 0.77 m. Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:13 The demonstration 0:35 Understanding the problem 1:04 Where do we draw the Free Body Diagram 2:06 Summing the forces 3:04 What happens at the minimum angular speed 3:53 Why the force of tension is zero 4:41 Solving the problem Next Video: The Right Hand Rule for Angular Velocity and Angular Displacement Multilingual? Please help translate Flipping Physics videos! Previous

Name: Minimum Speed for Water in a Bucket Revolving in a Vertical Circle Category: Rotational Motion Date Added: 20171030 Submitter: Flipping Physics What is the minimum angular speed necessary to keep water in a vertically revolving bucket? The rope radius is 0.77 m. Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:13 The demonstration 0:35 Understanding the problem 1:04 Where do we draw the Free Body Diagram 2:06 Summing the forces 3:04 What happens at the minimum angular speed 3:53 Why the force of tension is zero 4:41 Solving the problem Ne

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We need to know the initial velocity of a projectile leaving the NerdAPult. That means we need the initial speed and the initial angle. This video shows exactly how I measured both. Content Times: 0:30 Taking measurements to determine the launch angle 1:20 Finding a triangle 2:02 Defining the angles 3:35 Determining the launch angle 4:38 Using the frame rate to find the change in time 5:08 Measuring the distance travelled during the first frame 6:12 Why initial speed and not initial velocity? 6:39 Determining the average launch speed [url="http://www.flippingphysics.com/measuri

Name: NerdAPult  Measuring Initial Velocity Category: Kinematics Date Added: 27 May 2014  09:29 PM Submitter: Flipping Physics Short Description: None Provided We need to know the initial velocity of a projectile leaving the NerdAPult. That means we need the initial speed and the initial angle. This video shows exactly how I measured both. Content Times: 0:30 Taking measurements to determine the launch angle 1:20 Finding a triangle 2:02 Defining the angles 3:35 Determining the launch angle 4:38 Using the frame rate to find the change in time 5:08 Measuring the distance tr

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

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 Be

This example problem works shows that Velocity and Speed are different. It also illustrates that Speed is Not Velocity without direction. Content Times: 0:16 Reading the Problem 1:10 Translating the problem to physics 1:53 Part (a) Average Speed 2:57 Part (b) Average Velocity 4:34 Speed is Not Velocity without direction [url="http://www.flippingphysics.com/exampleproblemvelocityandspeedaredifferent.html"]Want Lecture Notes?[/url] Next Video: [url="http://www.flippingphysics.com/understandingandwalkinggraphsofpositionasafunctionoftime.html"]Understanding and Walki

Name: Velocity and Speed are Different: Example Problem Category: Kinematics Date Added: 21 May 2014  08:47 AM Submitter: Flipping Physics Short Description: None Provided This example problem works shows that Velocity and Speed are different. It also illustrates that Speed is Not Velocity without direction. Content Times: 0:16 Reading the Problem 1:10 Translating the problem to physics 1:53 Part (a) Average Speed 2:57 Part ( Average Velocity 4:34 Speed is Not Velocity without direction Want Lecture Notes? Next Video: Understanding and Walking Position as a function of T

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

Name: Introduction to Velocity and Speed and the differences between the two. Category: Kinematics Date Added: 21 May 2014  08:44 AM Submitter: Flipping Physics Short Description: None Provided 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

What is Pavel time? Pavel time is the time right before a deadline when actual work gets done. How does this relate to physics? It relates specifically to Albert Einstein's theory of relativity. Part of the theory of relativity states that measurements of various quantities are relative to the velocities of observers. In particular, space and time can dilate. So, in real life, as an object approaches the speed of light, it gets squished and time slows down for the object. How does this relate to Pavel time? In my theory of relativity, as more work gets done more quickly, time s

Cheetahs are basically the supercars of the animal kingdom. They have a top speed of 75 miles per hour and a 0 to 60 time of 3 seconds, faster than a vast majority of production sports cars. A light and aerodynamic bone structure reduces drag forces to the absolute minimum, a long tail provides balance while sprinting and counterforces while turning which allows for extreme agility, and flat paws provide better traction than most cats. A light weight of 125 pounds on average allow the cheetahs powerful muscles do the minimum amount of work (since work=displacement*force) and thus energy is co
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A lab in which students oscillate an extended spring to create standing waves. By measuring the period or frequency of the standing waves, as well as the wavelength, students calculate the speed of the wave using the wave equation. Ultimate goal of this lab is to have students understand that the type of wave and the medium determine the speed of the wave. The wave equation, holds true and describes a relationship, but the speed of the wave is not determined by adjusting the wavelength or frequency. Materials: Long springs stopwatches meter sticksFree
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