Homework Help: physics

Posted by taylur on Wednesday, February 15, 2012 at 10:24am.

a satelitte is in orbit about the earth. its orbital radius 7.47x10^7. mass of satelitte 6862kg & mass of earth 5.97x10^24kg determine the orbital speed in mi/s 1mi/s=1609m/s

physics - drwls, Wednesday, February 15, 2012 at 11:01am
What are the dimensions for your orbit radius? km? miles? meters?
Whatever it is, solve this equation for V

V^2/R = G*M/R^2

G is the universal constant of gravity and M is the mass of the Earth.

Then do the conversion from meters/s to miles/s

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