1. The diagram opposite shows a simple motor driven winch. The motor drives a 30 tooth gear which turns the 80 mm diameter drum via a 150 tooth gear. The drum lifts the 3 kN load at a speed of 0.5 m/s with a system efficiency of 25%. Calculate: a) Torque on drum b) Power to lift the load c) Speed of the drum d) Power produced by motor e) Speed of motor

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