QUIZ 05
K, L and M, with masses of 5m, 3m and 2m respectively, a pulley and rope are arranged as shown in the figure. The coefficient of friction between the masses are 0.5 and the friction of the horizontal plane is negligible.Given that the relative velocities of L and M with respect to K are zero, find the minimum force F applied to K in terms of mg, where g is the gravitational acceleration.(The masses of rope and pulley, and friction of pulley are assumed negligible.)
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