Collisions question? (involving momentum)

AI Thread Summary
A 3.45 g ball collides with a stationary 5.82 g ball, initially moving at 45 m/s. After the collision, the first ball bounces off at a 36-degree angle with a velocity of 28 m/s. The discussion seeks to determine the magnitude and direction of the second ball's velocity post-collision and whether the collision is elastic. Participants are encouraged to share their calculations and insights to solve the problem. The focus remains on applying momentum principles to analyze the collision dynamics.
driftk
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I've been trying solve this problem for a long time but can't figure it out.

A 3.45 g ball is moving toward a stationary 5.82 g ball with a velocity of 45 m/s. The first ball bounces off at an angle of 36 degrees from its original path with a velocity of 28 m/s. What is the magnitude and direction of the velocity of the second ball after the collision? Is the collision elastic?

Thank you.
 
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