
Francisco P. answered 10/23/14
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Rigorous Physics Tutoring
The initial speed is 1 m/s and the final speed is 2 m/s.
The displacement is Δx = 0.027 m.
We can apply the constant-acceleration equation, Δx = ½(vi + vf)t, to find the time, t.
t = 2Δx/(vi + vf) = 2*0.027/(1 + 2) = 0.018 seconds.