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March 30, 2015

March 30, 2015

Posted by **Malcom** on Thursday, April 23, 2009 at 12:55am.

Where to start?

- Physics -
**drwls**, Thursday, April 23, 2009 at 8:16amYou want the space statiion to rotate at angular rate w such that

R w^2 = g, where R = 25 m.

Therefore w = sqrt(g/R).

Treat the space station as a wheel with all of its mass at distance R from the center. Its moment of inertia wil them be

I = M R^2

The "torque impulse" applied by the rockets in 1 hour must be enough to provide the required angular momentum of the space station, which is I w.

4 T R *(3600 s) = I w = M R^2 w

Solve for the thrust, T. The number 4 comes from the number of thrusters

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