Question: The coefficient of static friction between block A and a

The coefficient of static friction between block A and a horizontal floor is 0.45 and the coefficient of static friction between block B and the floor is 0.30. The mass of each block is 2.0 kg and they are connected together by a cord.
(a) If a horizontal force F pulling on block B is slowly increased, in a direction parallel to the connecting cord, until it is barely enough to make the two blocks start moving, what is the magnitude of F at the instant that they start to slide?
(b) What is the tension in the cord connecting blocks A and B at that same instant?

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  • CreatedJune 06, 2016
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