The driving wheel of a belt drive attached directly to an electric motor (as depicted in Fig. 10-5) has a diameter of 38 cm and operates at 1200 rpm. The motor turns the wheel, which moves the continuous looping belt, whose other end goes around a pulley, turning it and the shaft of some machine attached to it. The tension in the belt is 130 N on the slack side and 600 N on the tight side. Find the horsepower transmitted by the wheel to the belt and hence to the machine. Assume friction is negligible and there are no energy losses.

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38 cm Motor Driving wheel 130 N 600 N Belt Fig. 10-5 Machine A