A rocket is sent vertically up with a velocity less than the escape velocity from the earth. Taking and as the mass and radius of earth, the maximum height attained by the rocket is given by the following expression |
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a) |
b) |
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c) |
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A rocket is sent vertically up with a velocity less than the escape velocity from the earth. Taking and as the mass and radius of earth, the maximum height attained by the rocket is given by the following expression |
|||

a) |
b) |
||

c) |
d) |

1 Answer

127 votes

**(c)**

If is the mass of racket, that of earth and is the radius of earth, then gravitational potential energy of racket near the surface of earth

Gravitational potential energy of racket at a height from earth’s surface

Increase in gravitational potential energy of racket

If is the escape velocity of racket, then

127 votes

127