An arrangement of masses and pulleys is shown in the figure. Strings connecting masses A and B with the pulleys are horizontal and all pulleys and strings are light. Friction coefficient between the surface and the block B is 0.2 and between blocks A and B is 0.7. The system is released from rest. Use (g=10 m/s2). Find the magnitude of frictional force (in N) between block A and B.

An arrangement of masses and pulleys is shown in the figure. Strings c

1.	An arrangement of masses and pulleys is shown in the figure. Strings connecting masses A and B with the pulleys are horizontal and all pulleys and strings are light. Friction coefficient between the surface and the block B is 0.2 and between blocks A and B is 0.7. The system is released from rest. Use (g=10 m/s2). Find the magnitude of frictional force (in N) between block A and B.
Answer» An arrangement of masses and pulleys is shown in the figure. Strings connecting masses $A$ and $B$ with the pulleys are horizontal and all pulleys and strings are light. Friction coefficient between the surface and the block $B$ is $0.2$ and between blocks $A$ and $B$ is $0.7$ . The system is released from rest. Use $(g = 10 {m/s}^{2})$ . Find the magnitude of frictional force (in $N$ ) between block $A$ and $B$ .

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