I m stuck on this physics question....?
2016-04-18 6:58 am
A uniform plank, with length L = 5.92 m and weight W = 455 N, rests on the ground and on a frictionless roller at the top of a wall of height h = 2.96 m (see Fig. 9-52). The plank remains in equilibrium for any value of θ 70° but slips if θ < 70°. Find the coefficient of static friction between the plank and the ground.
回答 (1)
2016-04-18 9:22 am
μ = tan Θ = 2.75
收錄日期: 2021-05-01 20:38:39
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