Two planets 
and 
of masses 
and 
with radii 
and 
respectively are present 8 
distance away from each other. Minimum velocity with which a particle is projected from surface of A such that it reaches plane B is given by 
. Value of ' 
' is
Text Solution
Verified by Experts4
(4)
We have to find the point where the gravitational field must be zero.This is because after that point particle itself pulled by greater mass, no need to give any amount of kinetic energy.
Potential at A
Potential at point 
distance apart from 
Potential difference is
Applying conservation of energy principle
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