A man pulls a block with a force of 300 N through 50 m in 60 s. Find the power used by him to pull the block. (250 W)
Difficulty: Easy
Solution:
Force = F = 300 N
Distance = S = 50m
Time = t = 60 s
Power = P = ?
Power =$\frac{work}{time}$ = $\frac{w}{t}$= $\frac{(F\times S)}{t}$
P =$\frac{(300\times50)}{60}$ = $5 \times50$ = 250 W
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