1. The problem statement, all variables and given/known data A satellite is in a circular orbit of radius R from the planet's center of mass around a planet of mass M. The angular momentum of the satellite in its orbit is: I. directly proportional to R. II. directly proportional to the square root of R III. directly proportional to the square root of M. The correct answer apparently is II and III. 2. Relevant equations 3. The attempt at a solution OK, I thought that since the satellite's angular momentum is mvR * sin(90), then its angular momentum would be directly proportional to its mass, velocity, and/or even the radius orbit. I was thus the only thing that made sense. Why is the correct answer II and III? Thanks so much in advance for the help!