Physics · Work and Energy
A boy lifts an object vertically upward above his head by exerting a force. Which of the following works done is negative?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Work done by the muscles of the boy
- 2Work done by the reaction force of the object
- 3Work done by the applied force of the boy
- 4Work done by the force of gravity✓
Correct answer
Work done by the force of gravity
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