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vipson231
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Homework Statement
You can determine the velocity of a satellite in uniform circular orbit by applying Newton's second law, Newton's law of gravity, and the centripetal acceleration due to gravity. Which of the following is not correct?
a) The orbital radius r and the speed v cannot be independently chosen. In other words, for different values of r there is corresponding different values of v.
b) Given the same orbital radius, a satellite in orbit around the Moon will have a slower speed than a satellite in orbit around the Earth.
c) The satellite's speed depends on its mass; the larger the mass, the slower the velocity.
d) Two satelites are in orbit at the same time orbital radius from the planet, One is given a velocity equal to the escape velocity. The escape velocity is is √2 times greater than the velocity of the satelite of the orbit.
I'm pretty sure the answer's C. I can narrow the choices down to b or c. Isn't the speed proprtional to the radius not mass?