A bead of mass m = 5.0 kg is released from point A and slides on the frictionless track shown above. Note that the bead slides, it doesn’t roll, because there’s no friction at all.
(a) Determine the bead’s speed at point B.
(b) Determine the bead’s speed at point C.
(c) Determine the net work done on the bead in moving it from A to C.