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Friction forces act on both objects, and it is found that an external force of 39N, directed as shown, will just barely start the blocks

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Friction forces act on both objects, and it is found that an external force of 39N, directed as shown, will just barely start the blocks moving down the incline. Find normal force on each object, the tension in the connecting string, and the required value of H5 50 H5 N g'30' 20 {same friction coefcient for both objects)

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