Homework Help: physics

Posted by lehasa on Tuesday, August 16, 2011 at 11:33am.

starting from rest s=0,pulley A (rA=50 mm)is given a constant angular acceleration, A=6 rad/s2. Pulley C(rC=150mm) has an inner hub D (rD=75 mm) which is fixed to C and turns with it. What is the speed of block B when it has risen s=6 m ?

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