Consider the system shown in the figure.(Figure 1) Block A has weight 4.91 N and

Question

Consider the system shown in the figure.(Figure 1) Block A has weight 4.91 N and block B has weight 2.94 N . Once block B is set into downward motion, it descends at a constant speed. Assume that the mass and friction of the pulley are negligible.

Part A

Calculate the coefficient of kinetic friction ? between block A and the table top.

Express your answer numerically.

Consider the system shown in the figure.(Figure 1) Block A has weight 4.91 N and block B has weight 2.94 N . Once block B is set into downward motion, it descends at a constant speed. Assume that the mass and friction of the pulley are negligible.

Part A

Calculate the coefficient of kinetic friction ? between block A and the table top.

Express your answer numerically.

Explanation / Answer

Constant speed --> a = 0 .
T = Wb
T = Wa
= Wb/Wa = 2.94/4.91 = 0.6

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