|Dec3-08, 08:11 AM||#1|
Perfectly elastic collision
1. The problem statement, all variables and given/known data
In an isolated system, cart1 (with mass = 1 kg and vi1 = 2) has a perfectly elastic collision with cart2 (with mass = 2 kg and vi2 = 0). Find the velocity of cart1 and the velocity of cart2 after the collision.
I have to solve this using kinetic energy and momentum equations.
2. Relevant equations
m1vi1 + m2vi2 = m1v1f + m2v2f
1/2m1vi12 + 1/2m2vi22 = 1/2m1v1f2 + 1/2m2v2f2
3. The attempt at a solution
I have gotten to this point:
2= V1F + 2V2F
4= V1F2 + 2V2F
but I cannot get the numbers to work out correctly.
Using another equation I know that V1f = 2/3 and V2f = 4/3
I am doing substitution wrong or something.
|Dec3-08, 11:16 AM||#3|
I got that by solving the kinetic energy equation.
I mutiplied both sides by 2 to get rid of the halves.
It is actually supposed to read:
4 = Vif^2 + 2V2f^2
|Similar Threads for: Perfectly elastic collision|
|Perfectly elastic collision||Introductory Physics Homework||2|
|perfectly elastic collision||Introductory Physics Homework||3|
|Perfectly Elastic Collision Problem||Introductory Physics Homework||15|
|[SOLVED] Perfectly Elastic Collision||Introductory Physics Homework||5|
|perfectly elastic collision||Introductory Physics Homework||7|