Problem 3: Family tension A door of width != 1.00 m and mass M = 15.0 kg is attached to a door frame by two hinges. For this problem, you may ignore gravity, as we are interested in rotational motion around the vertical axis. There is no friction of any kind. An angry mother-in-law slams the door shut, by pushing at the middle of the door (1/2 from the hinges) with a force of F = 100N, lasting a time At = 0.200 2