- #1

Chica1975

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## Homework Statement

a 5.00g object moving to the right at 20.0cm/s makes an elastic head-on collision with a 10.0g object that is initially at rest. Find the velocity of each object after the collision.

## Homework Equations

p=mv

m1v1 +m2v2/m=m1=m2

## The Attempt at a Solution

I have attempted this question several times.

I have converted all units to kg and m/s before starting all calculations.

I found the momentum for each using p=mv but this was not the right answer.

then I tried the other equation I have given and tried to minus the initial velocity from answer - still its not correct.

I am not great at collisions and find these really difficult - esp the conservation of energy/momentum concepts. I don't know to translate the conceptual into the application using equations and the info given in the question.

Please someone help me.