The two wheels of the vehicle are connected by a 20-kg link AB with center of mass at G....

The two wheels of the vehicle are connected by a 20-kg link AB with center of mass at G. The link is pinned to the wheel at B, and the pin at A fits into a smooth horizontal slot in the link. If the vehicle has a constant speed of 4 m/s, determine the magnitude of the force supported by the pin at B for the position θ = 30°.