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Physics / Physics with MasteringPhysics 4 / Chapter 8 / Problem 29P

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

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A 0.21-kg apple falls from a tree to the ground, 4.0 m

Chapter 8, Problem 29P

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QUESTION:

Problem 29P

A 0.21-kg apple falls from a tree to the ground, 4.0 m below. Ignoring air resistance, determine the apple’s kinetic energy, K, the gravitational potential energy of the system, u, and the total mechanical energy of the system, E, when the apple’s height above the ground is (a) 4.0 m, (b) 3.0 m, (c) 2.0 m, (d) 1.0 m, and (e) 0 m. Take ground level to be y = 0.

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QUESTION:

Problem 29P

A 0.21-kg apple falls from a tree to the ground, 4.0 m below. Ignoring air resistance, determine the apple’s kinetic energy, K, the gravitational potential energy of the system, u, and the total mechanical energy of the system, E, when the apple’s height above the ground is (a) 4.0 m, (b) 3.0 m, (c) 2.0 m, (d) 1.0 m, and (e) 0 m. Take ground level to be y = 0.

ANSWER:

Step 1 of 3

In this problem, we have to calculate the kinetic energy, potential energy and the total mechanical energy.

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