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Question

A 50 N force is applied to the body of 2 kg. This applied force maintains the velocity of the body at 2 m/s. If the body moves in perpendicular direction to the applied force, find the power delivered by the force.

A
100 W
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B
0 W
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C
50 W
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D
200 W
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Solution

The correct option is B 0 W
Power is given by P=Fvcosθ
Here, angle (θ) between applied force and velocity is 90
So, P=50×2×cos90
P=0 W

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