# Avinash can run with a speed of 8 m//s against the frictional force of 10 N, and Kapli can move with a speed of 3 m//s against the frictional force of

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

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Since power = force xx velocity,
power of Avinash, P_A = (10N) (8m//s) = 80 W
power of Kapil, P_K = (25N) (3m//s) = 75 W
Thus, P_A gt P_K, i.e., Avinash is more powerful then Kapil as he does more work (80J) per second then Kapil who does 75 J of work per second.

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