Q)
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(B)
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A rocket is launched normal to the surface of earth, away from the Sun, along the line joining the
Sun and the Earth. The Sun is 3 x 10° times heavier than the Earth and is at a distance 2.5 x10
times larger than the radius of the Earth. The escape velocity from Earth's gravitational field is
Ve = 11.2 km s'. The minimum initial (v.) required for the rocket to be able to leave the Sun-earth
system is closest to (Ignore the rotation and revolution of the Earth and the presence of any other
planet)
(A) vs = 22 kms
(C) Vs = 62 kms
2.
(2017)
(B) vs = 42 kms'
(D) vs = 72 km s'
1 Answer
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