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1. |
Calculate the drag force on a ball of diameter of 80mm, flowing through air. The density of air is 1.25 kg/m3 and the ball flows with a velocity of 7m/s. The Reynolds number is 3730. |
A. | 0.077 N |
B. | 76969 N |
C. | 0.011 N |
D. | 10995 N |
Answer» B. 76969 N | |