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1) You are driving a 4-wheel car and are stopped at a red light on the highway. When the light turns green, you accelerate at a constant rate until your speed is 40 m/s. a) If you were speeding up for 5.0 s, what was the angular acceleration of your wheels? Assume the wheels have radii of 0.30 m and aren't slipping on the road. b) Once your speed hits 40 m/s, you stop speeding up and drive at a constant speed. While moving at this speed, what is the total rotational kinetic energy of all four of your wheels? Assume each wheel has a mass of 9.1 kg and is a uniform solid disk (I =;mr²).

1) You are driving a 4-wheel car and are stopped at a red light on the highway. When the light turns green, you accelerate at a constant rate until your speed is 40 m/s. a) If you were speeding up for 5.0 s, what was the angular acceleration of your wheels? Assume the wheels have radii of 0.30 m and aren't slipping on the road. b) Once your speed hits 40 m/s, you stop speeding up and drive at a constant speed. While moving at this speed, what is the total rotational kinetic energy of all four of your wheels? Assume each wheel has a mass of 9.1 kg and is a uniform solid disk (I =;mr²).

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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1) You are driving a 4-wheel car and are stopped at a red light on the highway. When the light turns green, you accelerate at a constant rate until your speed is 40 m/s. a) If you were speeding up for 5.0 s, what was the angular acceleration of your wheels? Assume the wheels have radii of 0.30 m and aren't slipping on the road. b) Once your speed hits 40 m/s, you stop speeding up and drive at a constant speed. While moving at this speed, what is the total rotational kinetic energy of all four of your wheels? Assume each wheel has a mass of 9.1 kg and is a uniform solid disk (I = mr²).
Transcribed Image Text:1) You are driving a 4-wheel car and are stopped at a red light on the highway. When the light turns green, you accelerate at a constant rate until your speed is 40 m/s. a) If you were speeding up for 5.0 s, what was the angular acceleration of your wheels? Assume the wheels have radii of 0.30 m and aren't slipping on the road. b) Once your speed hits 40 m/s, you stop speeding up and drive at a constant speed. While moving at this speed, what is the total rotational kinetic energy of all four of your wheels? Assume each wheel has a mass of 9.1 kg and is a uniform solid disk (I = mr²).
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