physics
posted by melissa .
Two balls with masses of 2.0kg and 6.0kg travel toward each other at speeds of 12 m/s and 4.0 m/s respectivly. If the balls have a head on inelastic collision and the 2.0 kg ball recoils with a speed of 8.0 m/s how much kinetic energy is lost in the collision?

What do you think? Momentum is conserved. What is the difference between intitial and final KE?

i don't need your sass, i need the answer
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