The driver of a 1,500 kg car is traveling at 25 m/s. A deer runs into the road and the driver slams on the brakes. If it takes the car 5 seconds to stop, the acceleration of the car is ____ m/s2.


a.
0.25 m/s2


b.
-0.25 m/s2


c.
5 m/s2


d.
-5 m/s2