The power required to exert 1 N force,over a distance of 1 m in 1 second is
A)1 W.
B)2 W.
C)1/3 W.
D)3 W.
E)none of these

Question

Quizplus · Accepted Answer

The formula for power is P = W/t, where P is power, W is work and t is time. In this case, the work done is 1 N force exerted over a distance of 1 m, which is equal to 1 Joule. Since the time taken is 1 second, the power is 1 Joule/1 second which is equal to 1 Watt (W). Therefore, the correct answer is A) 1 W.

The Power Required to Exert 1 N Force,over a Distance