Answer:
a = 0.154 [m/s^2]
Explanation:
To solve this problem we must use the following formula of kinematics.

where:
Vf = final velocity = 0
Vi = initial velocity = 100 [km/h]
t = time = 3 [min] = 180 [s]
Now we need to convert the velocity from [km/h] to [m/s]
![100[\frac{km}{h} ]*1000[\frac{m}{1km} ]*1[\frac{h}{3600s} ]=27.77[\frac{m}{s} ]](https://tex.z-dn.net/?f=100%5B%5Cfrac%7Bkm%7D%7Bh%7D%20%5D%2A1000%5B%5Cfrac%7Bm%7D%7B1km%7D%20%5D%2A1%5B%5Cfrac%7Bh%7D%7B3600s%7D%20%5D%3D27.77%5B%5Cfrac%7Bm%7D%7Bs%7D%20%5D)
0 = 27.77 - (a*180)
a = 0.154 [m/s^2]
Note: the negative sign of the equation shows, that the car slows down until it stops
Sublimation = A process in which solid substance directly changes in has and vice versa.
Hope This Helps :P