Question

How can a single pulley be used as single movable pulley?Explain or draw a labelled diagram.

Answer 1

Here's your answer,

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Single movable pulley : “A pulley whose axis of rotation-is movable (not fixed in position) is a movable pulley".The single movable pulley is preferred to a single fixed pulley because load can be lifted by applying an effort equal to half the load (in ideal situation) i.e. the pulley acts as a force multiplier.

Answer 2

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Here is your answer ⤵⤵

A pulley is a mechanical device that can be used to lift heavily objects more easily. Pulleys consist of a wheel that rotates on an axle—which is a rod through the center of the wheel—and a rope, cable, or chain. There are three main types of pulleys: fixed, movable, and compound.

A movable pulley is a pulley that is free to move up and down, and is attached to a ceiling or other object by two lengths of the same rope. Examples of movable pulleys include construction cranes, modern elevators, and some types of weight lifting machines at the gym.

Movable pulleys give you a mechanical advantage, which is measure of performance for machines. Having a mechanical advantage means the force applied by the system is greater than the force you put in. In a pulley system, this means the pulley can lift the object with a greater amount of force than you apply to the rope. This allows you to lift heavy things more easily.

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