Avinash can run with a speed of 8 m s-1 against the frictional force of 10 N, and Kapil can move with a speed of 3 m s-1 against the frictional force of 25 N. Who is more powerful and why?

Answer:

We know,

Power = Force × velocity

P = F × v

Power deliver by Avinash

P = 10 × 8

P = 80W

Power deliver by Kapil

P = 25 × 3

P = 75W

Avinash is more powerful because he delivers a power of 80W, while Kapil delivers a power of 75W.

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