A bicycle racer is going downhill at 14.0 m/s when, to his horror, one of his 2.14-kg wheels comes off when he is 67.0 m above the foot of the hill. We can model the wheel as a thin-walled cylinder 85.0 cm in diameter and neglect the small mass of the spokes. 1)How fast is the wheel moving when it reaches the foot of the hill if it rolled without slipping all the way down? Express your answer in meters per second. 2)How much total kinetic energy does the wheel have when it reaches the bottom of the hill? Express your answer in joules.
A bicycle racer is going downhill at 14.0 m/s when, to his horror, one of his 2.14-kg wheels comes off when he is 67.0 m above the foot of the hill. We can model the wheel as a thin-walled cylinder 85.0 cm in diameter and neglect the small mass of the spokes. 1)How fast is the wheel moving when it reaches the foot of the hill if it rolled without slipping all the way down? Express your answer in meters per second. 2)How much total kinetic energy does the wheel have when it reaches the bottom of the hill? Express your answer in joules.
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter10: Rotational Motion
Section: Chapter Questions
Problem 60P: A uniform solid disk and a uniform hoop are placed side by side at the top of an incline of height...
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A bicycle racer is going downhill at 14.0 m/s when, to his horror, one of his 2.14-kg wheels comes off when he is 67.0 m above the foot of the hill. We can model the wheel as a thin-walled cylinder 85.0 cm in diameter and neglect the small mass of the spokes.
1)How fast is the wheel moving when it reaches the foot of the hill if it rolled without slipping all the way down?
Express your answer in meters per second.
2)How much total kinetic energy does the wheel have when it reaches the bottom of the hill?
Express your answer in joules.
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