Escape velocity of a body from Earth is 11.2 km/s. For a planet with mass 9 times Earth and radius same, escape velocity is MCQ with Answer and Explanation

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Escape velocity of a body from Earth is 11.2 km/s. For a planet with mass 9 times Earth and radius same, escape velocity is

A. 11.2 km/s

B. 22.4 km/s

C. 3.73 km/s

D. 33.6 km/s

Answer: Option D

Solution (By JKExamLibrary)

v_esc ∝ √M. M'=9M => v'=3×11.2=33.6 km/s.

This question belongs to: Science Physics

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