A 120-V dc motor drives a pump through a gearbox (Figure 4–24). If the power input to th...

A 120-V dc motor drives a pump through a gearbox (Figure 4–24). If the power input to the pump is 1100 W, the gearbox has an efficiency of 75%, and the power input to the motor is 1600 W, determine the horsepower output of the motor.