Block a of mass 36 kg is on block b of mass 66 kg block b, Ask an Expert

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Block A of mass 3.6 Kg is on Block B of mass 6.6 Kg. Block B is on a frictionless surface and the coefficient of static friction between the two blocks is 0.36.

a) If they move at constant velocity, what is the frictional force between A and B?

b) What is the maximum horizontal force that can be applied to B without A slipping?

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