A force of 200 N is required to keep an object sliding at a constant speed of 2 m/s across a rough floor. How much power is being expended to maintain this motion?
Answer (3)
Force x speed = power 200 x 2 = 400 watts
Power = work/time
Work = force x distance
power = force X distance/time (velocity)
power = 200N x 2m/s
power = 400 joules ;
The power expended to maintain the motion of the object is calculated using the formula P = F × v . With a force of 200 N and a speed of 2 m/s, the power is 400 watts. This power is necessary to keep the object sliding at a constant speed against friction.
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