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

Avinash can run at a speed of 8 ms-1 against the frictional force of 10 N, and Kapil can move at a speed of 3 ms-1 against the frictional force of 25 N. Who is more powerful and why?
Answer:
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Avinash is more powerful than Kapil.