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Block B with mass mb rests on top of block A with mass ma. Both blocks are on a horizontal table top. There is no friction between block A and the table but there is a coefficient of static friction µs between block A and B. A string is attached to block A and runs over a pulley connected to block C with mass mc that is suspended off the edge of the table. A) draw the free body diagram for each object? B) What is the largest mc can be so that blocks A and B slide together?

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Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

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