If force and displacement of particle in the direction of force are doubled. work would be:
Correct answer: B. 4 times
- A. Double
- B. 4 times
- C. Half
- D. ¼ time
Explanation
The work done (W) is given by the formula:W= F.dWhere F is the force appliedd is the displacement in the direction of forceNow, if both the force (F) and the displacement (d) are doubled, the work done becomes:W′= 2F.2d=4(F.d)=4W
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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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