A scientist discovers two new planets. Planet A has Moon A orbiting it at a constant speed $ s $ and at a constant distance $ d $ from the surface. Planet B has the same radius as Planet A but is much more massive. Moon B orbits Planet B at the same distance $ d $ above the surface as Moon A orbits Planet A.
Which of the following statements correctly compares the speeds of Moon A and Moon B?

Question

A scientist discovers two new planets. Planet A has Moon A orbiting it at a constant speed $ s $ and at a constant distance $ d $ from the surface. Planet B has the same radius as Planet A but is much more massive. Moon B orbits Planet B at the same distance $ d $ above the surface as Moon A orbits Planet A.
Which of the following statements correctly compares the speeds of Moon A and Moon B?(a) Moon A and Moon B will have the same speeds while orbiting their respective planets.
, (b) Moon A will have a greater speed orbiting Planet A compared to Moon B orbiting Planet B.
, (c) Moon A will have a lesser speed orbiting Planet A compared to Moon B orbiting Planet B.
, (d) There is not enough information to determine the speed of Moon A and Moon B.
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Jason · Accepted Answer

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