- #1

- 230

- 0

## Main Question or Discussion Point

http://en.wikipedia.org/wiki/Moon

average distance form earth=384,403,000meters. Multiply by 2π=2,412,743,158meters

orbital period=27days7hours43.1minutes=114,186sec

This gives 2,412,743,158/114,186=21,130meters/sec linear speed.

Wikipedia says 1,021meters/sec

Where's the mistake?

average distance form earth=384,403,000meters. Multiply by 2π=2,412,743,158meters

orbital period=27days7hours43.1minutes=114,186sec

This gives 2,412,743,158/114,186=21,130meters/sec linear speed.

Wikipedia says 1,021meters/sec

Where's the mistake?

Last edited: