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Two satellite of same mass are launched in the same orbit of radius `r` around the earth so as to rotate opposite to each other. If they collide inelastically and stick together as wreckage, the total energy of the system just after collision is

A

`-(2GMm)/(r)`

B

`-(GMm)/(r)`

C

`(GMm)/(2r)`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
A
If they collide inelastically and stick together as wrekage, then
KE = 0, only PE is present
`:. E=U=2(-(GMm)/(r))=-(2GMm)/(r)` .
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