If the potential energy is zero at a given point, must the force also be zero at that point? Give an example.

2 Dimensional Motion Problem solving strategy Motion in the X direction is independent of motion in the X direction Break the problem into two parts, on for the X motion and one form the Y motion Handle each part like a 1D problem Express y as a function of x and t for each of the two objects Combine the equations to eliminate unknowns Force and...