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Homework Statement
A light-rail train going from one station to the next on a straight section of track accelerates from rest at 1.4 { m/s^2} for 15 { s}. It then proceeds at constant speed for 1100 { m} before slowing down at 2.2 { m/s^2} until it stops at the station.
What is the distance between the stations?
How much time does it take the train to go between the stations?
Homework Equations
(vx)f= (vx)i + ax[tex]\Delta[/tex]t
xf= xi + (vx)i[tex]\Deltat[/tex] + 1/2ax([tex]\Deltat[/tex])2
(vx)f2= (vx)i2+2ax[tex]\Deltax[/tex]
The Attempt at a Solution
I already know the answer but I can't figure out how to get to the right answer...
d= 1400m
t=77s