Two blocks are supported by a pulley along an incline as shown. The lower block B has a weight of 30 lbsand the higher block A has a weight of 20 lbs. Assume that there is friction between the blocks withHs = 0.15 and assume no friction between block Band the incline. Determine the angle z for whichmotion is impending.201b301bATension in block A as a function of z can be written as TA%3DTension in block B as a function of z can be written as TâyThus, impending motion is at z =degrees.

The free-body diagram of the system is shown in the figure below:

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