- #1

emily081715

- 208

- 4

## Homework Statement

A 2.0-kg cart collides with a 1.0-kg cart that is initially at rest on a low-friction track. After the collision, the 1.0-kg cart moves to the right at0.50 m/s and the 2.0-kg cart moves to the right at0.30 m/s .If the positive direction is to the right, what was the initial velocity of the 2.0-kg cart?

## Homework Equations

i know that it is a momentum problem so i am assuming we will use p=mv

## The Attempt at a Solution

i originally tried solving for the initial velocity by setting the equation up like this; m1(v2-v1)= m2(v2-v1). when plugging in all the variables and isolating for V1 of the 2.0kg cart i got 0.05 m/s. that is not the correct answer and i am unsure is i missed steps or am doing the problem completely wrong