Question

A driver of a car traveling at 16.6 m/s applies
the brakes, causing a uniform deceleration of
3.0 m/s^2.
How long does it take the car to accelerate
to a final speed of 12.1 m/s?
Answer in units of s

part 2- How far has the car moved during the braking period?
Answer in units of m

Answer 1

Vf = Vi + a t

12.1 - 16.6 = -3 t

t = (16.6-12.1)/3