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1. A water jet 0.02 m2 in area has a velocity of 15 m/s. If the jet impinges normally on a plate which is moving at a velocity 5 m/s in the direction of the jet, what is the force on the plate due to this impact ? (Density = 1000 kg/m3)
(A): 200 N
(B): 2000 N
(C): 20000 N
(D): 4000 N
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