Efficiently Calculate Stopping Time for a Cyclist | Displacement Homework

[chuckset]

Homework Statement

A cyclist is traveling with a speed of 11.0 m/s when she applies the brakes. After slowing for 2.5s, her speed has been reduced to 3.0 m/s. If she continues braking, how much longer will it take her to stop?

I found the deceleration to be -3.2 m/s^2
V1 = 3.0 m/s
V2 = 0

2. The attempt at a solution

I used the equation V2 = V1 + (a)(t) and got the change in time to be 0.9375s

Does this seem like the correct way to solve this?

 

[rock.freak667]

Well you found her deceleration correctly, so now what you want to get is the time it takes the cyclist to go from 11 m/s to 0 m/s.