Answer to Question #313292 in Mechanical Engineering for Weezie

Question

Drive pulley A with a diameter of 200 mm , drives pulley B with a diameter of 800 mm by means of a belt drive. IF pulley B is uniformly accelerated from 69 r/min to 240 r/min calculate

(a) The angular acceleration of each pulley

(b) The linear acceleration of the belt if slip is ignored

(C) The initial velocity of pulley A in r/min and the final velocity of pulley A in rad/s.

Answer 1

The angular acceleration is the time rate of change of the angular velocity and is usually designated by α and expressed in radians per second per second. For the case in which the angular velocity is uniform (nonvarying), θ = ωt and α = 0.

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angular acceleration