A body is projected with a velocity of 2 × 11.2 km/s from the surface of earth. The velocity of body when it escapes the gravitational pull of earth is

Q: A body is projected with a velocity of 2 × 11.2 km/s from the surface of earth. The velocity of body when it escapes the gravitational pull of earth is

(a) √3 × 11.2 km/s

(b) 11.2 km/s

(c) √2 × 11.2 km/s

(d) 0.5 × 11.2 km/s

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Ans: (a)