A satellite S is moving in an elliptical orbit around earth. mass of satellite is very small compare

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7.Gravitation

normal

A satellite $S$ is moving in an elliptical orbit around the earth. The mass of the satellite is very small compared to the mass of the earth. Then

the acceleration of $S$ is always directed towards the centre of the earth

the angular momentum of $S$ about the centre of the earth changes in direction, but its magnitude remains constant

the total mechanical energy of $S$ varies periodically with time

the linear momentum of $S$ remains constant in magnitude

Solution

Force on satellite is always directed towards earth, So, acceleration of satellite $S$ is always directed towards centre of earth. Net torque of this gravitational force $F$ about centre of earth is zero. Therefore , angular momentum (both in magnitude and direction) of $S$ about centre of earth is constant throughout. Since, the force $F$ is conservative in nature, therefore, mechanical energy of satellite remains constant. Speed of $S$ is maximum when it is nearest to earth and minimum when it is farthest.

Standard 11

Physics

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normal

A satellite $S$ is moving in an elliptical orbit around the earth. The mass of the satellite is very small compared to the mass of the earth. Then

Solution

Similar Questions

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