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1. |
A water jet, 0.0020 m2 in area, is issued from a nozzle with a velocity of 10 m/s. It is made to impinge perpendicular on a plate that moves away from the jet with a velocity of 5 m/s. The force on the plate is: |
A. | 75 N |
B. | 100 N |
C. | 50 N |
D. | 150 N |
Answer» D. 150 N | |