A rocket is launched into space. what must the rocket do so that it will orbit t

Question

A rocket is launched into space. what must the rocket do so that it will orbit the Earth? a) it must get far enough away from the Earth so that the Earths gravity is negligable. b) it must continously fire its rockets so that it doesnt fall back to earth c) It must fly fast enough parrell to the surface, so that it doesnt hit the Earth Surface. d) once it is in space, it will be okay, there is no gravity in space. e) it must get close enough to the sun so that the suns gravity cancels the Earth gravity. Please explain your answer.

Explanation / Answer

Correct answer is (C)

Because the orbit is a approx circular pathway and in circular pathway particle need to maintain a velocity which prevent centripetal force to take it towards center so the velocity maintains a centrifugal force also which is equal to centripetal force so the particle prevent from fall to center.

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