Posted by joshua on Sunday, November 7, 2010 at 2:45pm.
A 5.00 kg ball (ball 1), moving to the right at a velocity of +4.00 m/s on a frictionless table, collides headon with a stationary 7.60 kg ball (ball 2). Find the final velocities of the balls if the collision is as specified below.
(a) elastic collision
ball 1
ball 2
(b) completely inelastic collision
ball 1
ball 2
cant seem to figure out out how to get this started for each part in terms the correct formula to use, please help.

physics please help  bobpursley, Sunday, November 7, 2010 at 2:48pm
inelastic equation: only conservation of momentum can be used, I don't think you will solve it.
elastic equation; you can use both conservation of momentum and conservation of energy, you can solve it. A little algebra is required.
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