A car decelerates at 2.0m/s^2 and comes to a stop sfter traveling 25m. Find a.) the speed of the car at the start of the deceleration and b.) the time required to come to a stop.

a) Use v^2 = u^2+2as where 'v' is the final velocity (0 m/s), 'u' the initial velocity, 'a' the acceleration(-2 m/s^2) and 's' the displacment.

b) Use your answer from a) and use v=u+at