A. 4 ƒ l v2 / g d
B. 4 f2 l ν / 2 g d
C. 2 ƒ l v 2 / 2 g d
D. 4 ƒ l v2 / 2 g d
Right Answer: D. 4 ƒ l v2 / 2 g d
January 22, 2018 Hassan Ali Mechanical Engineering
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