Question

How do pulleys provide mechanical advantage?

Answer 1

HEY BUDDY HERE'S YOUR ANSWER :

A pulley increases the distance over which a force does work.

Mechanical advantage comes from changing how work is being done on an object. Work is defined as a force exerted over a distance.

W = F × d

When we use simple machines, such as pulleys, the total work done moving an object is the same. In other words;

W = F without × d without = F with × d with

Simple machines make work easier by either increasing the force applied to an object, as is the case with a lever, or increasing the distance over which that force is applied, which is the case with a pulley.

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