How to Calculate Energy Required to Accelerate a Roller Coaster on a Flat Track?

[newme]

Hey
How can i calculate the amount of energy/power required to accelerate my roller coaster on a flat track.
Mass=4500 approximate when loaded
Time=2.64secs to reach top speed
Distance=125m
Velocity=47.248ms-1
I know how to calculate it for a track that rises i can use M*G*H/Time
but my height is 0 so i don't know what to do.
Thanks Newme

 

[russ_watters]

f=ma
w=fd

 

[newme]

Thanks

f=ma
w=fd

Ok thanks i will try that out

 

[FredGarvin]

You may want to add P=fv