UNIVERSE
SATELLITESICY BODIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Two satellites, P and Q, of the same mass, are in circular orbits around the Earth. The radius of the orbit of Q is three times that of P. Which one of the following statements is correct?
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The kinetic energy of P is greater than that of Q.
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The weight of P is three times that of Q.
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The time period of P is greater than that of Q.
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The speed of P is three times that of Q.
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Explanation:
Detailed explanation-1: -Two satellites of the same mass are launched in the same orbit around the earth so as to rotate opposite to each other. They collide in-elastically and stick together as wreckage.
Detailed explanation-2: -The distances of two satellites P and Q from earth are in the ratio 3:1.
Detailed explanation-3: -Yes, it so because the oribital speed of a satellite is independent of the mass of a satellite. Therefore, the speeds of the artificial satellites of different masses but of the same orbital radius will be the same.
There is 1 question to complete.