An engine pumps water continuously through a hose. Water leaves the hose with a velocity v and m is the mass per unit length of the water jet. What is the rate which kinetic energy is imparted to water ?

1. A. 1 2 m 2v 2
2. B. 1 2 mv 3
3. C. mv 3
4. D. 1 2 mv 2

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