Wednesday
June 19, 2013

# Homework Help: Physics

Posted by Chad on Friday, August 10, 2012 at 3:20pm.

A low friction cart of mass m, traveling at speed v, collides (perfectly) elastically with a cart of triple the
mass, initially at rest. What is the result of this collision? (What are the final, after-collision velocities?) Do
NOT use the derived equations from the textbook. Work this out and show the work.

• Physics - bobpursley, Friday, August 10, 2012 at 4:50pm

I will be happy to try to check your work.

You have two equations: conservation of momentum, and energy.

• Physics - Chad, Saturday, August 11, 2012 at 10:21pm

Bob, AKA smart guy,

I already figured it out thank you very much. You obviously didn't read the question as it says don't use derived equations from the textbook. Wouldn't you assume conservation of energy and momentum equations are in the book?

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