GravitationHard
Question
A satellite is revolving round the earth with orbital speed v0. If it stops suddenly, the speed with which it will strike the surface of earth would be (ve = escape velocity of a particle on earth′s surface) :-
Options
A.
B.v0
C.
D.
Solution
Orbital velocity v0 = 
and
Escape velocity =
+ 0 = 
mv2
⇒
⇒v2 =
= ve2 - 2v02
andEscape velocity =
+ 0 = mv2⇒
⇒v2 =
= ve2 - 2v02Create a free account to view solution
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