A 4-kg sphere rests on the smooth parabolic surface. Determine the normal force it exerts on the surface and the mass { m }_{ B } of block B needed to hold it in the equilibrium position shown.
A 4-kg sphere rests on the smooth parabolic surface. Determine the normal force it exerts on the surface and the mass { m }_{ B } of block B needed to hold it in the equilibrium position shown.