Question

Blaise is driving a car that is traveling 6.03 m/s and accelerates uniformly at 2.5 m/s² to reach a speed of 12.9 m/s. How long does it take for this acceleration to occur?
oobleck
a = ∆v/∆t, so ∆t = ∆v/a
∆t = (12.9-6.03)/2.5 seconds