In the figure, M_2 has more mass than M_1 and M_1 has more mass than M_3. The qu

Question

In the figure, M_2 has more mass than M_1 and M_1 has more mass than M_3. The questions refer to the magnitudes of tensions and weights. There is friction between the horizontal plane and M_2 (mu_k notequalto 0). M_2 is observed to travel at a constant speed. Assume that the pulleys are frictionless and have negligible mass. Select the appropriate statements to complete the following sentences. M_3 accelerates upwards. M_3g is .... T_4 T_3 is ... T_2. T_2 is ... T_1. The magnitude of the net force on M_2 is T_2 - T_3. M_1g is ..... T_1.

Explanation / Answer

Given that the mass M2 moves with a constant speed. This means both mass M1 and M2 are also moving at constant speeds. So

M3 accelerates upwards : False

Also T3 is less than T1 since there is friction between M2 and horizontal plane.

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