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Rocket science question
Link | by Jinseta Ava on 2006-04-19 17:21:39
Can someone tell me how much thrust is needed to propell 117.2 metric tons to roughly 650 to 700 mph?

This is for my own research, your aid would be much appreciated.

The Paper

Re: Rocket science question
Link | by gendou on 2006-04-19 17:58:30 (edited 2006-04-19 18:00:13)
lets say you want to accelerate to 700mph in 60 seconds
constants of the problem:
  m = 117.2 metric tons
 dt = 60 s
 dv = 700 mph

problem solution:
 f = m * a          // force equals mass times acceleration
   = m * (dv / dt)  // acceleration is change in velocity over change in time
   = 6.11e5 newtons // type the problem into google!



Re: Rocket science question
Link | by Jinseta Ava on 2006-04-20 13:12:31
Thanks Gendou, you're a life saver.

The Paper

Re: Rocket science question
Link | by Kazu-sama on 2006-05-15 21:47:24
but then, if you are trying to get it into space, as in a rocket, wouldn't you need to consider the gravity?? g=9.8 m/s^2
in the equation wouldn't be f = m * %u25B3a where %u25B3a is (dv/dt)-g ???

i was just wondering, anyway.

Re: Rocket science question
Link | by hoheshii on 2006-05-15 22:30:30
Technically, you would have to factor in every force acting on the mass. This would include gravity and drag.

Wise Man says: "Take a dog off its leash and it will wander."

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