If force and displacement of a particle in direction of force are doubled. Work would be
Correct answer: D. 4 times
- A. Double
- B. 1/4 times
- C. Half
- D. 4 times
Explanation
Work W = F d. If F → 2F and d → 2d then W → (2F)(2d) = 4 F d, i.e., four times the original work.
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About Work and Energy
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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