The masses of the earth and moon are M and M/n respectively. Their centres are separated by a distance 2r. The minimum speed with whicih a particle of mass m should be projected from a point midway the two centres so as to escape to infinity is

The masses of the earth and moon are M and M/n respectively. Their cen

1.	The masses of the earth and moon are M and M/n respectively. Their centres are separated by a distance 2r. The minimum speed with whicih a particle of mass m should be projected from a point midway the two centres so as to escape to infinity is
Answer» `sqrt((GM(n+1))/(nr))` `sqrt((2GM(n+1))/(nr))` `sqrt((GM(n+1))/(2NR))` `sqrt((2(GMN))/((n+1)r))` Answer :B