posted by Pat .
3. A 0.200 kg air-track glider moving at 1.20 m/s bumps into a 0.600 kg glider at rest.
a.) Find the total kinetic energy after collision if the collision is elastic. .144J I got that one.
b.) Find the total kinetic energy after collision if the collision is completely inelastic.
b. on this solve the Velocityies after the collision by conservation of momentum. I don't see enough information to do it.