Question

What is the best mechanical advantage that you can obtain for any door that you simply push open?

Answer 1

Answer:

  2

Step-by-step explanation:

The best mechanical advantage you can get is obtained by pushing the door at its edge. If the door's center of mass is halfway from the hinge to the edge, then the advantage you get (in terms of force reduction) is ...

  1/(1/2) = 2