If a satellite of mass m, orbits around the Earth of mass Me, in an orbit of radius r, its angular speed will be:
Correct answer: A. Option A
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation
A is correct as per the derived formula by equating gravitational acceleration and centripetal acceleration. Angular speed is inversely proportional to the square root of the cube of radius.
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About Gravitation
Newton’s law of universal gravitation relates the force between masses to their masses and separation, while gravitational field strength explains weight and orbital motion. The topic covers satellite velocity and period, escape ideas, weightlessness in free fall, and artificial gravity, which differs from ordinary gravitational attraction.
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