Solve for R$\_$Bx and R$\_$By$.$ I know it involves using the acceleration at center of gravity. But am lost otherwise on how to put together the equation to solve for both R$\_$Bx and R$\_$By$.$ The problem is below. USE VECTORS PLEASE.

The common configuration of a reciprocating engine is that of a slider crank mechanism shown in the figure above. If crank OB has a clockwise rotational speed of $1500$ rpm$,$ sweep the angle theta from $0$ degrees to $180$ degrees. $($WA$=10$ lb and WAB$=5$ lb$)$ i$)$ Find and graph the angular velocity and acceleration with respect to theta. ii$)$ Plot the velocity and acceleration of point A with respect to theta. iii$)$ Plot the reaction force, RAx, and RAy with respect to theta. iv$)$ Plot the reaction force, RBx$,$ and RBy with respect to theta. Assume that the center of gravity of the connecting rod is in the geometric center of the rod.