The motor shown in the photo is used to turn a wheel and attached blower contained within the housing. The details of the design are shown. If the pulley A connected to the motor begins to rotate from rest with a constant angular acceleration of ag = 2 rad/s?, determine the magnitudes of the acceleration of point P on the wheel, after the pulley has turned 3.06 revolutions. Assume the transmission belt does not slip on the pulley and wheel. 0.15 m. AO aa = 2 rad/s² 0.4 m B (a)

For the design of the band brake shown, find the couple M required to turn the pipe in the V-block against the action of the flexible band. A force P = 31 lb is applied to the lever, which is pivoted about O. The coefficient of friction between the band and the pipe is 0.26, and that between the pipe and the block is 0.35. the weights of the parts are negligible. B M * 10" 45% 00 35° 35° 5 A Answer: M = | the tolerance the tolerance is +/-5% lb-in. 16" P

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