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pb23me
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Homework Statement
boxes 1,2 and 3 are touching each other. a force is applied to box 3. assume that the surface is frictionless. the masses are m1 20 kgs, m2 is 40 kgs, and m3 is 25kgs. the applied force to box 3 is 75 Newtons. find te acceleration of the blocks and the magnitude of there contact forces.
Homework Equations
Fnet=ma