Two blocks are free to slide along the frictionless, wooden

track shown in figure 1. The block of mass m1 = 5.00

kg is released from the position shown, at height h =

5.00 m above the flat part of track. Protruding from

its front end is the north pole of a strong magnet,

which repels the north pole of an identical magnet

embedded in the back end of the block of mass m2 =

10.0 kg, initially at rest. The two blocks never touch.

Calculate the maximum height to which m1 rises after

the elastic collision