12th grade Physics
posted by Jane .
In an experiment, a car taveling at 88m/s,west slams into a wall and comes to a halt in 0.75 seconds. What is the car's acceleration vector?

12th grade Physics 
bobpursley
it changed velocity from 88West to zero, in a given time.
acceleration= (finalveloictyinitialveloicty)/time
I assume you realize what negative West means.
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