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July 31, 2014

July 31, 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.

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