(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A 700 g air-track glider collides with a spring at one end of the track. The figure shows the glider's velocity and the force exerted on the glider by the spring.

How long is the glider in contact with the spring?

2. Relevant equations

F(t_1-t_2)=mv_2-mv_1

3. The attempt at a solution

I have the force as 36N, v_1 as -3, v_2 as 3.

When I plug this into the equation I get

change in t = (700*3-700*(-3))/36=116.6

I know this has to be wrong but I'm confused which variable I have wrong. Maybe the force?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Impulse momentum theorum with a spring

**Physics Forums | Science Articles, Homework Help, Discussion**