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

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

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Solution.

Power of anything is defined as the rate of work done by that thing.
Mathematically, power is defined as product of force and velocity.
Power =Fv
If we calculate the power of Avinash and Kapil, by the given information:
Power_{Avinash}=10\times 8=80watt
Power_{Kapil}=25\times 3=75watt
Therefore, it is quite visible that power of Avinash is more than the power of Kapil.

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