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#753222 ·published 2007-10-29 01:25 UTC
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Body A in Fig. 6-31 weighs 108 N, and body B weighs 37 N. The coefficients of friction between A and the incline are µs = 0.56 and µk = 0.25. Angle  is 40°. (Assume the positive direction is up the incline.)

    (a)Find the acceleration of A if A is initially at rest.

    (b) Find the acceleration of A if A is moving up the incline.

    (c) Find the acceleration of A if A is moving down the incline.