An engine raises 1000kg of water through a height of 60m in 20s. What is the power of the engine? (Take g = 10ms-2>).

  • A 120,000 W
  • B 30,000 W
  • C 333 W
  • D 300 W
  • E 30 W
waec 1989physics

The correct answer is B. 30,000 W

P = mgh/t = (1000 \(\times\) 10 \(\times\) 60) \(\div\) 20 = 30,000 W.

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