Showing work (Perfectly Elastic Collision)

[madmax2006]

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

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.

 

[rl.bhat]

Hi madmax2006, welcome to PF.
You have not written the problem completely. what is required in the problem?

 

[madmax2006]

Got it, thanks anyways! :)