Let' start by writing the space-time equation that we'll need for that problem:
s = 1/2*a*t^2 + v0t + s0
where s is the space, a the acceleration, t the time, v0 the initial velocity, s0 the initial space.
In this case we can say that s0 = 0 so the formula will now be:
s = 1/2*a*t^2 + v0t
Let's calculate the acceleration now:
a = Δv/Δt so 2m/s^2
Now we can calculate the space:
s = 1/2*2m/s^2*11s^2 + 14m/s*11s
s = 11m + 154m = 165 m
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Have a good day
