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Transcribed Image Text:Two blocks are supported by a pulley along an incline as shown. The lower block B has a weight of 30 lbs
and the higher block A has a weight of 20 lbs. Assume that there is friction between the blocks with
Hs = 0.15 and assume no friction between block Band the incline. Determine the angle z for which
motion is impending.
201b
301b
A
Tension in block A as a function of z can be written as TA
%3D
Tension in block B as a function of z can be written as Tây
Thus, impending motion is at z =
degrees.
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