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The masses and radii of the earth an moon are M_(1) and R_(1) and M_(2), R_(2) respectively. Their centres are at a distacne r apart. Find the minimum speed with which the particle of mass m should be projected from a point mid-way between the two centres so as to escape to infinity.

The masses and radii of the earth an moon are M_(1) and R_(1) and M_(2), R_(2) respectively. Their centres are at a distacne r apart. Find the minimum speed with which the particle of mass m should be projected from a point mid-way between the two centres so as to escape to infinity.

The masses and radii of the earth an moon are M_(1) and R_(1) and M_(2), R_(2) respectively. Their centres are at a distacne d apart. Find the minimum speed with which the particle of mass m should be projected from a point mid-way between the two centres so as to escape to infinity.