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Physics / Physics with MasteringPhysics 4 / Chapter 8 / Problem 45P

Physics with MasteringPhysics | 4th Edition | ISBN: 9780321541635 | Authors: James S. Walker

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You ride your bicycle down a hill, maintaining a constant

Chapter 8, Problem 45P

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QUESTION:

Problem 45P

You ride your bicycle down a hill, maintaining a constant speed the entire time. (a) As you ride, does the gravitational potential energy of the you-bike-Earth system increase, decrease, or stay the same? Explain. (b) Does the kinetic energy of you and your bike increase, decrease, or stay the same? Explain. (c) Does the mechanical energy of the you-bike-Earth system increase, decrease, or stay the same? Explain.

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QUESTION:

Problem 45P

You ride your bicycle down a hill, maintaining a constant speed the entire time. (a) As you ride, does the gravitational potential energy of the you-bike-Earth system increase, decrease, or stay the same? Explain. (b) Does the kinetic energy of you and your bike increase, decrease, or stay the same? Explain. (c) Does the mechanical energy of the you-bike-Earth system increase, decrease, or stay the same? Explain.

ANSWER:

Step 1 of 4

In this problem, if you are riding a bicycle down the hill, with constant speed , we need to explain in part(a) the gravitational potential energy of the you-bike-earth system will increase, decrease or remains same, in part(b) the kinetic energy of you and the bike will increase, decrease or remains same, and in part(c) the mechanical energy of you-bike-earth system will increase, decrease, or remains same.

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