The figure(Figure 1) shows a block (mass mA ) on a rough horizontal surface, connected by a thin cord that passes over a pulley to a second block (mB), which hangs vertically. If mA is 50Kg and mB is 30kg , in case the kinetic friction Coefficient is 0.25 what is the acceleration. Use Newton’s 2nd Law to find the formula for acceleration first. thanks Write the appropriate Formulas____________________   Plug in the given data with their units _______________   Solve for the unknown __________________________   Box the Final Answer with it’s unit __________________ E) Show all forces applied to mA & mB with directions and point at which it was applied to

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Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”