Showing work (Perfectly Elastic Collision)

AI Thread Summary
In a perfectly elastic collision between two pool balls with equal mass, one ball traveling west at 2.0 m/s and the other east at 5.0 m/s will exchange velocities post-collision. The confusion arises from understanding how to show the work for the calculations involved. The key equations for momentum and kinetic energy conservation should be applied to solve the problem. Clarifying the specific requirements of the homework question is crucial for providing accurate assistance. The discussion highlights the need for a complete problem statement to facilitate effective problem-solving.
madmax2006
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Homework Statement



Two pool balls hit head on. V(1) = 2.0 m/s west, V(2) = 5 m/s east. Mass is the same for each ball.

Homework Equations



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The Attempt at a Solution



m(1)*(-2m/s)^2 + m(2)*(5m/s)^2 =? no idea...I just know that each ball should be going the same speed and direction as the other.

I'm totally confused as to how I show work.

Thank you for reading the probably & attempting to help even if you're not able to. I'm open eyes & ears to everyone.
 
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Hi madmax2006, welcome to PF.
You have not written the problem completely. what is required in the problem?
 
Got it, thanks anyways! :)
 
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