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

Imagine a FBD of a beam on a pivot. Torque is defined as Force x Distance. The closer you are to the hinge the more force is required to push that door oepen, vice versa. That is why it is easier to push open a door the further you are from the hinge.