Why it gets easier to push open a door, the further you are from the hinge?

Question

Why it gets easier to push open a door, the further you are from the hinge?

In: 212

Answer 1

A door is a simple machine. Particularly a wheel-and-axel and lever. When you have a lever, the further you are from the fulcrum -the point of contact of the seesaw- the less effort it takes to move the opposite side. In this case the hinge is your fulcrum, therefore the opposite side is easiest to move.