1. The problem statement, all variables and given/known data A square plate is tilted on one of its corners as shown below. If the corner does not slip, and the plate is allowed to fall, determine the velocity of the moving corner before it hits the ground. The moving corner is point P, which is 45 degrees above the horizontal. Mass=1.8kg Length of each side=.1m Anglecenter of mass=80 degrees Anglepoint P=45 degrees 2. Relevant equations Mg(Yfinal-&initial)=.5M omega2 3. The attempt at a solution I don't understand how to find delta Y in order to find potential energy. The center of mass is .071 m.