(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Before landing men on the moon, Apollo 11 space vehicle was put into orbit about the moon. The mass of the vehicle was 9979kg and the period of the orbit was 119 min. The maximum and minimum distances from the center of the moon were 1861 km and 1838km . Assuming the moon to be a uniform spherical body, what is the mass of the moon according to these data?

2. Relevant equations

GMm/R^2

elliptic equation?

3. The attempt at a solution

I tried using the kepler's law and Gravitational equation.. It seems I can't get the mass of the moon. Anyone can help me through?

thankx

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# Homework Help: Mass of the moon

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