A 500N force is applied on an object and it moves with velocity 10 ms-1. If value of power is 2500 watt. Then what will be the angle between force and displacement
Correct answer: B. 60°
- A. 0o
- B. 60°
- C. 90°
- D. 23°
Explanation
We are given:P = 2500 WF = 500 Nv = 10 m/sWe can rearrange the formula to solve forcos theta=P/F.vcos theta = 2500/500×10 cos theta =0.5Theta = cos-1 (0.5)Theta = 60º
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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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