Please help! i know how to do a elastic collisions in 1 dimension, but the 2D is too confusing...here is my problem:(adsbygoogle = window.adsbygoogle || []).push({});

You have a blue ball with a mass of 1.5 kg moving with a speed of 4.5 m/s in a direction below the positive x-axis. You have a red ball with a mass of 3.6 kg moving with a speed of 2.7 m/s in a direction to the left of the negative y-axis. When the balls collide, find the final velocity (magnitude and direction) for each of the two balls.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Elastic collision 2 dimension unequal masses not at rest

**Physics Forums | Science Articles, Homework Help, Discussion**