Earth-moon equatorial escape energy ratio 20.29 (was Apologizing for

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Thread: Earth-moon equatorial escape energy ratio 20.29 (was Apologizing for

# 22434 byhitssquad on Aug. 9, 2009, 12:56 p.m.

Member since 2022-08-22

> lunar escape Velocity is 2.38 km/sec vs earths escape velocity of 11.186 km/sec and the ratio between those is 4.7, the energy required is the square of that figure or 22.09.

Thank you. 11.186 km/s minus the earth's equatorial spin speed of 465 m/s equals 10.721. Dividing that by 2.38 km/s gives the ratio 4.5 which squared equals the escape energy ratio 20.29.

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