I just wrote a physics exam today and I got stumped on a couple problems that have been bugging me, and I should probably find out how they are done the right way, or at least how to set them up just in case I use them again and I don't see any examples in my textbook: The first I'm pretty sure involves a quadratic. It involves finding the angle you need to tilt a gun up in order to hit a target a distance d away if the target is on the same level as you. Only the Vi from the gun (without components) and the distance away are given. The second is a torque question I think. Determine if a glass will tip over when a horizontal force is applied to the top rim and the coefficient of static friction is 0.2. The glass weighs w has height h and has diameter d.