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November 25, 2014

November 25, 2014

Posted by **onda** on Friday, May 21, 2010 at 12:56am.

- physics -
**drwls**, Friday, May 21, 2010 at 1:01amThe reaction force is

F = Vexhaust*(mass flow rate)

= 40*0.2 = 8 Newtons

The acceleration rate is F/m = 2 m/s^2

Since that is less than g (which is 9.8 m/s^2), it won't leave the ground. It better have wheels if it is going anywhere.

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