- #1
Lilly
- 12
- 0
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
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