What is the speed of the second ball after the collision?

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Homework Help Overview

The discussion revolves around an elastic collision scenario involving two billiard balls of equal mass, where one ball is initially in motion and the other is at rest. The original poster seeks to understand the relationship between the velocities of the balls post-collision and is looking for the appropriate equation to use.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to clarify which equation is necessary to determine the speed of the second ball after the collision. Some participants reference other threads but do not provide the specific equation sought.

Discussion Status

The discussion is ongoing, with participants exploring the need for specific equations related to elastic collisions. There is a lack of consensus on providing direct answers, as some responses redirect rather than clarify the original poster's request.

Contextual Notes

The original poster expresses a desire to find the equation independently, indicating a preference for understanding the underlying principles rather than receiving a direct solution.

Luvs_Mariah_C
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A billiard ball traveling at 4.0 m/s has an elastic head-on collision with a billiard ball of equal mass that is initially at rest. The first ball is at rest after the collision. What is the speed of the second ball after the collision?

What equation should i use? Please post.
 
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Thanks...but

That shows me the anser, I'm looking for the equation to find the answer myself. Thank you anyways.
 
Look again.
 

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