Two satellites of same mass are launched in the same orbit round the earth so as to rotate opposite to each other. They soon collide inelastically and stick together as wreckage. Obtain the total energy of the system before and just after the collision. Describe the subsequent motion of the wreckage.A. `-(2GMm)/(2r)`B. `-(GMm)/( r) `C. `-(GMm)/( 2r)`D. `(GMm)/(4r)`

Two satellites of same mass are launched in the same orbit round the e

1.	Two satellites of same mass are launched in the same orbit round the earth so as to rotate opposite to each other. They soon collide inelastically and stick together as wreckage. Obtain the total energy of the system before and just after the collision. Describe the subsequent motion of the wreckage.A. `-(2GMm)/(2r)`B. `-(GMm)/( r) `C. `-(GMm)/( 2r)`D. `(GMm)/(4r)`
Answer» Correct Answer - A According to the conservation of linear momentum mv-mv =(2m)V SO KE =0 Total energy =KE +PE `=-(GM(2m))/( r) ` `=-(2GMm)/(r )`

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