- #1

Kalix

- 26

- 0

## Homework Statement

Question:A 2,800kg car is traveling at a velocity of 22m/s. The car hits the wall and comes to a complete stop. The collision took 0.3 seconds.

a. What is the cars impulse?

b. What force did the wall exert on the car?

c. What force did the car exert on the wall?

d. Calculate the acceleration rate and the distance the car traveled during its acceleration?

m=2,800kg

Vi=22m/s

Vf=0m/s

t=0.3 seconds

F=?

Am I missing any other variables?

## Homework Equations

FΔt=mVf-mVi

There must be other equations but I have no idea what they are.

## The Attempt at a Solution

So for part a this is what I tried

FΔt=mVf-mVi

F=(2800)(0)-(2800)(22)/.3

F=-205333

This seems wrong to me just because its so big. So what am I doing wrong?

I don't really know what to do for b, c, and d so if someone could get me started on those that would be great. Thanks!