two gliders and b mass 050 kg and 030 kg respectively move toward each other 20 ms
two gliders A and B with mass 0.50 kg and 0.30 kg respectively move toward each other at 2.0 m/s on frictionless linear air track after they collide gliders A and B stick together find the common final velocity and compare the initial and final kinetic energies of the gliders before and after collision