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1. |
A water jet 0.02 m 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/m) |
A. | 200 N |
B. | 2000 N |
C. | 20000 N |
D. | 4000 N |
Answer» C. 20000 N | |