A freight train has a mass of 1.2e+7 kg. If the locomotive can exert a constant pull of 8.4e+5 N, how long does it take to increase the speed of the train from rest to 82 km/h?
The Attempt at a Solution
(1.2e+7 * 82)/h = 8.4e+5
i solved for h
h = (8.4e+5)/(9.84e+8)
h = 8.54e-4
then i had to convert from hours to min.
so i got
this is my first time posting on this forum so i hope i followed the right format.