A rocket is fired from the earth towards the sun. At what distance | Filo
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Class 11

Physics

Modern Physics

Gravitation

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A rocket is fired from the earth towards the sun. At what distance from the earths centre is the gravitational force on the rocket zero? Mass of the sun = , mass of the earth = . Neglect the effect of other planets etc. (orbital radius = ).

Solution:
Mass of the Sun,
Mass of the Earth,
Orbital radius,
Mass of the rocket
Let be the distance from the centre of the Earth where the gravitational force acting on satellite P becomes zero.
From Newton’s law of gravitation, we can equate gravitational forces acting on satellite P under the influence of the Sun and the Earth as:






.
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