Work-energy Theorem
Net work done on an object equals change in:
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About This Question
- Subject
- physics
- Chapter
- laws of motion
- Topic
- work-energy theorem
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Kinetic energy
The Work-Energy Theorem states that the net work Wnet done by all forces (conservative and non-conservative) acting on a particle is equal to the change in its kinetic energy: Wnet=ΔK=Kf−Ki=21mvf2−21mvi2. If work is positive, the particle speeds up; if negative, it slows down. This theorem is a direct consequence of Newton's second law applied over a displacement.
This easy difficulty physics question is from the chapter laws of motion, covering the topic of work-energy theorem. It appeared in the 2025 exam.
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