which of the following is the magnitude of the velocity just before it began to slow down?

Question

While coming to a stop, a car's velocity decreases at a constant rate of 2 m/s every second. It travels 25 m during this time.which of the following is the magnitude of the velocity just before it began to slow down?

Answer 1

v(i)^2 = -2 a d , derived from v(f)^2 - v(i)^2 = 2 a d since v(f) = 0 in this instance.