5.2 A collar of mass m is attached to a rod of mass my and length I as shown in Fig. P5-2. The collar slides without friction along a horizontal track while the rod is free to rotate about the pivot point Q located at the collar. Knowing that the angle d describes the orientation of the rod with the vertical, that x is the horizontal position of the cart, and that gravity acts downward, determine a system of two differential equations for the collar and the rod in terms of x and 8. X Figure PS-2