Question

DEFINE PULLEY. HOW DOES IT HELP TO LIFT THINGS TO SOME HEIGHT ?​

Answer 1

Answer:

A pulley is simply a collection of one or more wheels over which you loop a rope to make it easier to lift things. ... If you have a single wheel and a rope, a pulley helps you reverse the direction of your lifting force. So, as in the picture below, you pull the rope down to lift the weight up.

Answer 2

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• pulley is simply a collection of one or more wheels over which you loop a rope to make it easier to lift things. ... If you have a single wheel and a rope, a pulley helps you reverse the direction of your lifting force. So, as in the picture below, you pull the rope down to lift the weight up.