Physics Kinematic/Newtons 2nd Law problem

Ok so during a collision, a passenger in the front seat of a car accelerates from 13.3m/s(30 mills per hour) to rest in .10s.

What is the acceleration of the passenger?

To answer this first write out what your given:
Vi=13 m/s
Vf=0 m/s
A-= ? m/s^2
d= ? m
t= .1 sec

then use your kinematics equations, for this one use vf=vi + a*t
plug it in and it should look like this: 0m/s = 13m/s +0.1*a

solve for a

the acceleration is -130 m/s. It is in the negative direction since you are slowing down