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Get Full Access to Conceptual Physics - 12 Edition - Chapter 5 - Problem 5e
Get Full Access to Conceptual Physics - 12 Edition - Chapter 5 - Problem 5e

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# You hold an apple over your head. (a) Identify all the

ISBN: 9780321909107 29

## Solution for problem 5E Chapter 5

Conceptual Physics | 12th Edition

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Problem 5E

You hold an apple over your head. (a) Identify all the forces acting on the apple and their reaction forces. (b) When you drop the apple, identify all the forces acting on it as it falls and the corresponding reaction forces. Neglect air drag.

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Solution 5E (a) The forces acting on the apple are: (i) the weight of the apple, or the earth’s gravitational force on the apple and (ii) the push of the head on the apple upward. These are the action force. The reaction forces of the above are: (i) the apple’s attraction the earth in an upward direction since the apple also has a mass and hence it will attract the earth and (ii) the apple’s push force on the head downward. (b) When the apple is dropped and the air drag is neglected, the weight of the apple will act downward. This is the action force. Similarly, the reaction force to this will be the apple’s attraction force on the earth acting upward.

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