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Blocks A and B are of identical size and mass, m. The long side of each block is 2a while the short side is a. The force P acts on block A at mid-height (see picture). The coefficient of friction between block A and B is μs,AB and the coefficient of friction between block B and surface C is μs,BC = 0. Assume that static and kinematic friction are equal, i.e., μs,BC = μk,BC and μs,AB = μk,AB. What is the maximum P that can be applied so that block A does not tip?

Blocks A and B are of identical size and mass, m. The long side of each block is 2a while the short side is a. The force P acts on block A at mid-height (see picture). The coefficient of friction between block A and B is μs,AB and the coefficient of friction between block B and surface C is μs,BC = 0. Assume that static and kinematic friction are equal, i.e., μs,BC = μk,BC and μs,AB = μk,AB. What is the maximum P that can be applied so that block A does not tip?

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Blocks A and B are of identical size and mass, m . The long side of each block is 2 a while the short side is a. The force P acts on block A at mid-height (see picture). The coefficient of friction between block A and B is μ s , A B and the coefficient of friction between block B and surface C is μ s , B C = 0 . Assume that static and kinematic friction are equal, i.e., μ s , B C = μ k , B C and μ s , A B = μ k , A B .
What is the maximum P that can be applied so that block A does not tip?|

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