Question: Two blocks A and B are released from rest, on a gr incline when they are 6 0 ft apart, The coeficient of friction under

Two blocks A and B are released from rest, on a gr incline when they are 60 ft apart, The coeficient of friction under the upper block A is 0.20 and that under the lower block B is 049.Compute the elapsed time until the blocks touch. After they touch and move as a unit, what will be the contact force between them?

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