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.