20. A body is being moved from rest along a straight line by a machine delivering constant power. The distance covered by body in time t is proportional to t (1) VE (2) 3/2 (3) 8/4 (4) e LA
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Answer:
Power= Work done / time
Power= Force.Displacement/Time
P =FScos theta / t
P*t/Fcos theta= displacement
here theta is the angle between force applied and displacement
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