A body is pulled through a distance of 500m by a force of...
A body is pulled through a distance of 500m by a force of 20N. If the power developed is 0.4kW, calculate the time for which the force acts
250.0s
25.0s
2.5s
0.5s
Correct answer is B
Force x Distance = Power x Time
Time = Force×DistancePower
= 20×5000.4×1000
= 25.0s
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