A block of mass m 5.00 kg is released from rest from point a

A block of mass m 5.00 kg is released from rest from point a

A block of mass m = 5.00 kg is released from rest from point A and slides on the frictionless track shown in the figure. Determine (a) the block’s speed at points B and C and (b) the net work done by the gravitational force on the block as it moves from point from A to C.