What are facts about inclined planes?

Answer 1

The purpose is to reduce the force that must be applied to raise a load.

The inclined plane and rollers were used in building the pyramids in Egypt.

To raise a body vertically a force must be applied that is equal to the weight of the body.

The amount of work done in raising the body is equal to its weigt times the distance through which it is raised.

If friction is ignored, the work done using the inclined plane will be exactly equal to the work done in lifting the body directly.

Answer 2

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