|Apr18-08, 03:35 PM||#1|
moon earth system escape velocity
1. The problem statement, all variables and given/known data
A projectile is fired straight away from the moon from a base on the far side of the moon, away from the earth. What is the projectile's escape speed from the earth-moon system?
2. Relevant equations
Escape velocity = sqrt[2GM/R]
3. The attempt at a solution
What I'm wondering is, do I just have to use this formula the moon or do I have to take the gravitational potential energy of the earth and the projectile into account also?
|Apr18-08, 03:58 PM||#2|
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