A vertical disk of radius r rolls around a horizontal track of radius R which, itself, rotates at a constant rate Ohm_0 about a vertical axis. The center of the disk moves at a constant angular rate phi_0 about the same vertical axis. Using the given cylindrical unit vector system, obtain the acceleration of point P on the edge of the disk when this point is at its highest position.

A vertical disk of radius r rolls around a horizontal track of radius R which, itself, rotates at a constant rate Ohm_0 about a vertical axis. The center of the disk moves at a constant angular rate phi_0 about the same vertical axis. Using the given cylindrical unit vector system, obtain the acceleration of point P on the edge of the disk when this point is at its highest position.