The binding energy of a system of earth and its satellite orbiting round the earth in a circular orbit is E. If m of that satellite, its linear speed in that orbit isA. `2E//m`B. `E//m`C. `sqrt(2E//m)`D. `sqrt(E//m)`

The binding energy of a system of earth and its satellite orbiting rou

1.	The binding energy of a system of earth and its satellite orbiting round the earth in a circular orbit is E. If m of that satellite, its linear speed in that orbit isA. `2E//m`B. `E//m`C. `sqrt(2E//m)`D. `sqrt(E//m)`
Answer» Correct Answer - c `E=(GMm)/(2r)=(1)/(2)mv_(e)^(2)` `v_(c)^(2)=(2E)/(m)` `therefore" "v_(c)=sqrt((2E)/(m)).`

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