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18/09/2020 4:51 pm
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A body is moving in a low circular or it about a planet of mass M and radius R. The radius of the orbit can be taken to be R itself. Then the ratio of the speed of this body in the orbit to the escape velocity from the planet is :
(1) 1
(2) 1/√2
(3) √2
(4) 2
1 Answer
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18/09/2020 4:54 pm
(2) 1/√2
Explanation:
v0/ve = √(Gm/r)/√2Gm/r
= 1/√2