If an object 'm' is displaced from A to B then what is the change in the potential energy w.r.t ground
Correct answer: D. 0
- A. 1 mg
- B. 3 mg
- C. 2 mg
- D. 0
Explanation
Object m displaced from A to B, both at the same height hence potential energy is zero. Potential energy change ΔU=mg( hbha ); since heights are equal ,ΔU=0
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Work transfers energy when a force causes displacement, while kinetic energy, gravitational potential energy and power describe motion, position and the rate of energy transfer. The work-energy theorem links net work with change in kinetic energy, and efficiency accounts for energy losses rather than treating them as energy destruction.
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