An engine pumps water continuously through a hose. If the speed with which the water passes through the hose nozzle is v and if k is the mass per unit length of the water jet as it leaves the nozzle, what is the kinetic energy being imparted to the water?
a) ½kv3
b) ½kv2
c) ½kv
d) ½v2/k
e) ½v3/k
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