i think i got it right it wants to know the speed of the command module and the time it takes to do 1 revolution(adsbygoogle = window.adsbygoogle || []).push({});

mass moon = 7.35E22 kg

radius moon = 1.74E6 m

altitude 60 mi

fromula used was Vcm^2 = GMm/Ro

the speed of the module was 1634 m/s

The time formula thans to enigma was

P = 2\pi \sqrt{\frac{a^3}{\mu}}}

T = 6511 seconds/60

T = 108 min

is this right?

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Scatch space mod prob. is need a formula and answer check

**Physics Forums | Science Articles, Homework Help, Discussion**