Question

how does a pully make our work easier

Answer 1

it makes our work easier by motion of its wheels.as rolling friction is less than any other friction n its very helpful

Answer 2

Pulleys are powerful simple machines. They can change the direction of a force, which canmake it much easier for us to move something. If we want to lift an object that weighs 10 kilograms one meter high, we can lift it straight up or we can use a pulley, so we can pull down on one end to lift the object up.