The winding drum of a hoist has a mass of 150kg and an outer diameter of 600mm.
A light cable wound around the drum carries a load of 100 kg.
This is accelerated from an initial speed of 1.5 m/s to a final speed of 3 m/s whilst travelling upwards through a distance of 5m.
The frictional resistance to the linear motion of the load is 150 N.
Determine the total energy (work done) and power required from the driving motor.
