(adsbygoogle = window.adsbygoogle || []).push({}); Force and Motion.....

hi

could someone please tell me where i am going wrong with this question:

A freight train has a mass of 1.20E+7 kg. If the locomotive can exert a constant pull of 6.10E+5 N, how long does it take to increase the speed of the train from rest to 83.4 km/hr?

i tried to find accelertion by using F=ma, and i keep getting 0.05833....then i put it into the equation v=vo+at, but my answers never turn out right. i think maybe unit conversion is where i'm going wrong.....but i'm not sure.

help would be appreciated...

thanks, lilly

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Force and Motion .

**Physics Forums | Science Articles, Homework Help, Discussion**