An engine pumps water through a hose pipe. Water passes through the pipe and leaves it with a velocity of 2 m/s. The mass per unit length of water in the pipe is 100 kg/m. What is the power of the engine?

Options

(a) 400 W
(b) 200 W
(c) 100 W
(d) 800 W

Correct Answer:

800 W

Explanation:

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