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Question

Define power. What is its SI unit? Give a relationship between power, force, and velocity.


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Solution

  1. Power is defined as the rate of doing work concerning time or energy utilized per unit of time.
  2. P=Et, P=Power, E=Energy, t=time.
  3. The S.I unit of power is Watt (W).
  4. The relation between power, force, and velocity is given by P=F×v where, F= force and v= velocity.

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