- #1
maxjohnfresh
- 1
- 0
Homework Statement
A 0.10-kg object moving initially with a velocity of 0.20 m/s eastward makes an elastic head-on collision with a 0.15-kg object initially at rest. What is the final velocity of the .10 kg object after the collision ?
Homework Equations
im not sure which equation to use :/
The Attempt at a Solution
i tried using m1v1+m2v2=(m1+m2) V
but it didnt come out right.
and i know the answer is -0.045 m/s