Homework Help: physics

Posted by srikala on Wednesday, April 11, 2012 at 9:08am.

two perfect elastic balls of same mass m are moving with velocities u1 and u2 . they collide elastically n times. the kinetic energy of the system finally is?

physics - bobpursley, Wednesday, April 11, 2012 at 9:12am
You are avoiding thinking. What exactly does the conservation of energy mean?

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