A sphere slides along a rod like displayed below. Assume the following: and A sphere sliding on a rod, which has a pivot attached to the ground. The system has two degrees of freedom, namely the pivot on the rod and the sliding of the sphere on the rod. Express the position, velocity, and acceleration in cartesian and polar coordinates. Assume the pivot point to be the origin of both coordinate systems and the dotted line to be the x-axis of the cartesian coordinate system