Elastic Collision: Find Height of m2 After Incline

[Paulie71199]

Homework Statement

Two masses of m1 and m2 collide elastically on a horizontal, frictionless surface. m1 is four times the mass of m2, and m1 is originally moving in the positive x direction at 13.8 m/s while m2 is moving in the negative x direction at 10.6 m/s. After the collision, m2 moves up a frictionless incline. To what height does m2 reach on the incline when it stops? Answer in meters.

Homework Equations

The Attempt at a Solution

The correct answer is 41.22 but I am unsure of how my professor got it.

 

[tiny-tim]

Hi Paulie!

Show us what you've tried, and where you're stuck, and then we'll know how to help!