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A hippopotamus and a frog are to be proj...

A hippopotamus and a frog are to be projected out of Earth into space. Do we need different velocities to do so?

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The escape velocity, `v_(e)=sqrt(2gR)`, does not depend upon the mass of the projected body. Thus we need the same velocity to project a hippopotamus and frog into space.
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PREMIERS PUBLISHERS-GRAVITATION-OTHER IMPORTANT QUESTION & ANSWERS (CONCEPTUAL QUESTIONS)
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  13. Why is Newton's law of gravitation called a universal law?

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  14. Why does the gravitational potential energy U(r) is always negative?

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  16. Under what condition, the gravitational potential energy of a body wil...

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  17. Can we determine the gravitational mass of a body inside an artificial...

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  18. Mention the factors which determine whether a planet would have an atm...

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  19. If the Earth stops rotating about its axis, then by what value will th...

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