I had made an error on my previous post so i will take it back to the beginning. I can't get this one for some reason.(adsbygoogle = window.adsbygoogle || []).push({});

First look at the diagram: http://bosco.iwarp.com/diagram.jpg

OK here's the problem:

Two identical balls (mass m) undergo a collision. Initially one ball is stationary, the other has kinetic energy of 8J. The collision is partially inelastic with 2 J energy converted to heat. What is the maximum deflection angle (alpha or beta) at which one of the balls is observed?

I have come up with the following relationships using conservation of momentum and energy:

1. Vo = V1 cos a + V2 cos B

2. 0 = V1 sin a - V2 sin B

and 12 = m (V1f^2 + V2f^2) which i believe can be written

3. 0.75Vo = V1^2+V2^2

by rearranging initial kinetic energy of ball one to solve for m.

How do i go about comparing alpha and beta? Are my equations correct

Help please! thanks

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# Homework Help: Momentum and angles problem

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