A satellite with kinetic energy `E_(k)` is revolving round the earth in a circular orbit. How much more kinetic energy should be given to it so that it may just escape into outer spaceA. `2E_(K)`B. `3E_(k)`C. `E_(K)`D. `E_(K//2)`

A satellite with kinetic energy `E_(k)` is revolving round the earth i

1.	A satellite with kinetic energy `E_(k)` is revolving round the earth in a circular orbit. How much more kinetic energy should be given to it so that it may just escape into outer spaceA. `2E_(K)`B. `3E_(k)`C. `E_(K)`D. `E_(K//2)`
Answer» Correct Answer - C `K.E.=(1)/(2)mV_(0)^(2), K.E.` for escape `=(1)/(2)mV_(e)^(2)` `=(1)/(2)m(sqrt(2)V_(0))^(2)=2((1)/(2)mV_(0)^(2))`

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A satellite with kinetic energy `E_(k)` is revolving round the earth in a circular orbit. How much more kinetic energy should be given to it so that it may just escape into outer spaceA. `2E_(K)`B. `3E_(k)`C. `E_(K)`D. `E_(K//2)`

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