Two wheels weighing W Kg and 20 Kg respectively are connected by a rod of negligible weight and are free to roll on the smooth planes shown. Determine the magnitude of W so that the rod will be...

Two wheels weighing W Kg and 20 Kg respectively are connected by a rod of

negligible weight and are free to roll on the smooth planes shown. Determine the

magnitude of W so that the rod will be horizontal when the system is in equilibrium.