1. The problem statement, all variables and given/known data An old, heavy wooden door leads to a basement storm cellar. If it requires 400N to lift the door by its handle and swing it open, what is the Weight (in N) of the door itself? (Also, there is a picture that shows from the hinge to the handle is 1.6m) 2. Relevant equations F=ma ? 3. The attempt at a solution I usually get stuck on the easiest of problems because I over think them. Would I just use the F=ma formula? Plugging it in as: 400N=m(10m/s)? (My teacher allows us to use 10 instead of 9.8 for acceleration). If so, the mass would come out to be 40kg which in turn is 400N. I would appreciate the help if I did this wrong. Thanks!