Answer to Question #168420 in Physics for Mustafa moneer

Question

Two blocks are placed on a plank. The plank is then lifted and held such that it hinges as seen in the diagram. The friction between the blocks and the plank is such that neither block slides on the incline.The mass,m​1,​ of block 1 is greater than the mass, m​2,​ of block 2. The mass of the plank, M, id greater than block 1. Derive the magnitude of the upward force, F at distance L, necessary to hold the plank as in the diagram at the top right. Express answers I’m terms of M, m1, m2, and g.

Answer 1

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