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Work, Power and Energy: Power — Instantaneous MCQ

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Power — InstantaneousMediumQuestion 30412

Question

A car engine exerts force F = 2000 N and moves at v = 20 m/s. Instantaneous power is:
  1. A
    100 W
  2. B
    4000 W
  3. C
    40000 W
    Correct
  4. D
    200 W

Correct answer

40000 W

Explanation

P = F × v = 2000 × 20 = 40000 W = 40 kW.

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