Classical Mechanics

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Comparing Work Done by Gravity: The Most Work

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On which of the following objects does gravity do the most work?

A

A 20 kg box sliding down a 6-m long ramp inclined 35°.

B

A 35 kg box lifted 2 m onto the back of a truck.

C

A 30 kg box that is dropped 2 m off the back of a truck.

D

A 20 kg child going down a 3 m high slide.

E

All have the same amount of work done by gravity.