Question

Two bodies, each of mass m, are kept with a separation 2l. A particle of mass m is projected from the midpoint of the line joining their centers, perpendicular to the line. The gravitational constant is g. (a) the minimum initial velocity of the mass m to escape the gravitational field of the two bodies is 4gml (b) the minimum initial velocity of the mass m to escape the gravitational field of the two bodies is 2gml (c) the minimum initial velocity of the mass m to escape the gravitational field of the two bodies is 2gml (d) the energy of the mass m remains constant

Answer 1

(A) The minimum initial velocity of the mass m to escape the gravitational field of the two bodies is 4