Question

What is accomplished by this simple pulley? (1 point) Responses It changes the duration needed to lift the object. It changes the duration needed to lift the object. It changes the distance of the pull needed to lift the object. It changes the distance of the pull needed to lift the object. It changes the direction of the force needed to lift the object. It changes the direction of the force needed to lift the object. It changes the total work done to lift the object

Answer 1

A simple pulley primarily accomplishes the following: It changes the direction of the force needed to lift the object.

By using a pulley, you can pull down on the rope to lift an object up, which can make it easier to lift heavy loads since it allows you to use your body weight more effectively. However, the total work done (force times distance) remains the same in an ideal system.