Question

Describe a pulley. Differentiate between a fixed pulley and movable pulley.

Answer 1

Answer:

A pulley is a wheel that carries a flexible rope, cord, cable, chain, or belt on its rim. Pulleys are used singly or in combination to transmit energy and motion. ... In belt drive, pulleys are affixed to shafts at their axes, and power is transmitted between the shafts by means of endless belts running over the pulleys.

A single fixed pulley is defined as a pulley with its axis of rotation fixed in place. It's used to shift the effort's direction. Whereas, a movable pulley is one that can move up and down and is connected to a ceiling or another object by two lengths of the same rope.