InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
if velocity given to an object from the surface of the earth is n times the escapes velocity then what will be the residual velocity at inifinity. |
|
Answer» Let residual velocity be v then from energy conservation `(1)/(2)m(nv_(e))^(2)-(GMm)/(R)=(1)/(2)mv^(2)+0` `impliesv^(2)=n^(2)v_(e)^(2)-(2GM)/(R)=n^(2)v_(e)^(2)-v_(e)^(2)-v_(e)^(2)=(n^(2)-1)v_(e)^(2)impliesv=(sqrt(n^(2)-1))v_(e)` |
|