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Name: Centripetal Acceleration Introduction Category: Rotational Motion Date Added: 20170828 Submitter: Flipping Physics Why is there a “center seeking” centripetal acceleration? A stepbystep walk through of the answer to this question. Want Lecture Notes? This is an AP Physics 1 topic. Content Times: 0:09 Which mint has the largest angular velocity? 1:14 What do we know about the angular and tangential accelerations of the mints? 2:21 What do we know about the tangential velocity of mint #3? 3:39 Centripetal acceleration introduction 4:44 The centripetal acceleration equations 5:35 The units for centripetal acceleration Next Video: Introductory Centripetal Acceleration Problem  Cylindrical Space Station Multilingual? Please help translate Flipping Physics videos! Previous Video: Demonstrating the Directions of Tangential Velocity and Acceleration Please support me on Patreon! Thank you to Christopher Becke and Aarti Sangwan for being my Quality Control Team for this video. Centripetal Acceleration Introduction

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)

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Name: AP Physics 1: Rotational Kinematics Review Category: Exam Prep Date Added: 23 March 2015  09:19 AM Submitter: Flipping Physics Short Description: None Provided Review of the Rotational Kinematics topics covered in the AP Physics 1 curriculum. Content Times: 0:14 Angular Velocity 0:54 Angular Acceleration 1:40 Uniformly Angularly Accelerated Motion 2:34 Uniform Circular Motion 3:30 Tangential Velocity 5:08 Centripetal Force and Centripetal Acceleration 7:10 Conical Pendulum Example Problem 9:36 Period, Frequency and Angular Velocity Multilingual? View Video

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When taking corners quickly, the biggest worry most drivers should have is slipping and losing control of the car. This happens when a driver takes the corner too fast. The physics of taking a flat corner depends on the equation vmax = Sqrt(mu*r*g). mu, the coefficient of static friction, is constant, as is g, the acceleration due to gravity. Therefore, a driver trying to take a corner as quickly as possible would like to make the radius of the turn as large as possible to allow for a higher vmax, keeping his car from slipping at higher speeds. But how? Doesn't a road have a defined radius? Yes, and no. The picture explains it. The arrow in the figure is what's called a "line" this is the best possible way for a car to take a corner at the highest speed. The line a regular driver would take is very curved, mimicking the road, and not allowing for a high vmax due to the small radius. A race car driver would take a better line. The racer's line is significantly less curved than the regular driver's line, making the radius much larger, allowing for a higher vmax . The racecar driver starts and ends wide of the inside and hits the apex of the turn, allowing for the least curved line possible. To conclude, when trying to take a corner quickly, the driver of the car should start out wide, hit the apex, and end wide, causing a relatively high radius and a relatively high vmax, without having the car slip off the road.

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