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    Angular Velocities of a Pulley

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    If the end of the cord is pulled downward with a speed Vc= 120mm/s, determine the angular velocities of pulleys A and B and the speed of block D. Assume that the cord does not slip on the pulleys. (See attachment for full question.)

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    Because, Vc = 120 mm/s
    Therefore, angular velocity of pulley A (Ra = 30 mm)
    wa = Vc/Ra = 120/30 = 4 rad/s - Answer

    If the velocity ...

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