posted by robert .
A bead of mass m = 40.5 kg is released from point A which is located 5 m above the ground and slides on the frictionless track as shown in the figure. Determine the beads speed when it reaches point C which is located 2.0 m above the ground.
initial PE + initial KE=finalKE+finalPE
mg*5+ 0=1/2 m v^2 +mg*2
solve for v