The mass and radius of the earth and moon are M1, R1 and M2, R2 respectively. Their centres are at a distance 'd' apart. The minimum speed with which a body of mass 'm' should be projected from a distance 2d/3 from the centre of M1, so as to escape to ∞ is:

Question:

The mass and radius of the earth and moon are M₁, R₁ and M₂, R₂ respectively. Their centres are at a distance ‘d’ apart. The minimum speed with which a body of mass ‘m’ should be projected from a distance 2d/3 from the centre of M₁, so as to escape to ∞ is:

Options :