Wednesday

April 16, 2014

April 16, 2014

Posted by **savy** on Friday, October 7, 2011 at 12:44am.

- physics -
**Henry**, Saturday, October 8, 2011 at 2:54pmF = = ma,

a = F/m = 8.1*10^5 / 1.4*10^7 = 0.058m/s^2.

Vf = 66km/h * 1000m/km * (1/3600)h/s =

18.33m/s.

t = (Vf - Vo) / a,

t = (18.33 - 0) / 0.058 = 316s.

**Related Questions**

Physics - A freight train has a mass of 1.2 107 kg. If the locomotive can exert ...

Physics - A freight train has a mass of 1.7 107 kg. If the locomotive can exert ...

physics - A freight train has a mass of 1.5 107 kg. If the locomotive can exert ...

physics - A freight train has a mass of 1.2 107 kg. If the locomotive can exert ...

physics - A freight train has a mass of 1.9 107 kg. If the locomotive can exert ...

physics - A freight train has a mass of 6.5 107 kg. If the locomotive can exert ...

physics - A freight train has a mass of 5 x 107 kg. If the locomotive can exert ...

physics - A freight train has a mass of 3.1 × 107 kg. If the locomotive can ...

physics - A freight train has a mass of 1.5 × 107 kg. If the locomotive can ...

physics - A freight train has a mass of 3.2 × 107 kg. If the locomotive can ...