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Hi there.
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So for this problem, we are told that two blocks stack one on top of the other.
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It's like on a frictionless horizontal surface.
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Now, the surface between the two blocks is rough.
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However, with a coefficient of static friction, that is equal to a value of 0 .5.
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So the top block has a mass that is given.
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So let's call that the mass of the top.
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M .t.
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So that is 2 .6 kilograms and the bottom block's mass is also given so the mass mb is equal to 4 kilograms if an horizontal force is applied to the bottom block what is the maximum value f that can have before the top block begins to sleep so let me just draw the situation that we have in here let's say that this is our surface right here, the ground.
01:05
So we have one block at the bottom and one block at the top.
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So this is the mass of the bottom, the mass of the block at the top...