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?
ScienceClass 9CBSEAnswered 27 Mar 2026
Answer
Soln:
P=f×v
P1= 10× 8 = 80W P2=25×3=75W
Hence Avinash is more powerful than Kapil
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