Q1. The diagram shows a simple winch. The motor drives a small gear and the large gear rotates the drum and raises the load. The load is 4KN and it raised at 0.4 m/s. The system is 50 % efficient.

Task (1):

Calculating the following:

1. The torque acting on the drum,
2. the power produced by the load,
3. the speed of the drum.

Task (2):
1. the power produced by the motor and
2. the speed of the motor.

Task (3):
Explain the reason behind efficiency loss in the system and how to improve the system’s efficiency.