SOLUTION: Problem: Find an approximate value for the rate at which the moon orbits the earth. Assume that the moon's orbit is circular.

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Question 4051: Problem:
Find an approximate value for the rate at which the moon orbits the earth. Assume that the moon's orbit is circular.
Answer by longjonsilver(2297) About Me  (Show Source):
You can put this solution on YOUR website!
28 days an orbit, i would guess for the time --> 28x24x3600 = 2419200 seconds

From the web, the moon's orbit is 480000miles in diameter, so the circumference of the orbit = pi%5Cd --> pi%2A480000

As speed = distance travelled/time taken

so speed = pi%2A480000%2F2419200

speed = 0.6miles/second which is 2160miles/hour.

Jon