A rd C B
Figure shows a block starting from rest when s = 0, pulley A is given a constant angular acceleration α. Determine the speed of block B when it has risen to s = $1. The pulley has an inner hub D which is fixed to C and turns with it. Given α = 3 rad/s², s/= 1 m, rA= 50mm, rC = 150 mm dan rD=75 mm.
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