Home
Class 12
PHYSICS
A satellite S is moving in an elliptical...

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.

A

The acceleration of S always directed towards of the earth

B

The angular momentum of S about the centre of the earth changews in direction but its magnitude remains constant.

C

The total mechanical energy of S varies perodically with line

D

The linear momentum of S remains constant in magnitude

Text Solution

Verified by Experts

The correct Answer is:
A
Force on satellite is always towards earth. Therefore acceleration of satellite S is always directed towards centre of the earth. Net torque of this gravitaoinal force F about centre of earth is constant throughout. Since the force F is conservative in nature therefore mechanical energy of atellite remains constant speed of S is maximum when it is nearest to earth and minimum when it is farthest.
Promotional Banner

Topper's Solved these Questions

  • GRAVITATION

    ALLEN|Exercise Illustration|34 Videos

  • GRAVITATION

    ALLEN|Exercise BOX-1|3 Videos

  • GRAVITATION

    ALLEN|Exercise Exercise 5 A (Previous Year Questions)|26 Videos

  • GEOMETRICAL OPTICS

    ALLEN|Exercise subjective|14 Videos

  • KINEMATICS-2D

    ALLEN|Exercise Exercise (O-2)|48 Videos

Similar Questions

Explore conceptually related problems

A satellite is moving in an orbit around the earth due to

Statement I: Consider a satellite moving in an elliptical orbit around the earth. As the satellite moves, the work done by the gravitational force of the earth on the satellite for any small part of the orbit is zero. Statement II: K_(E) of the satellite in the above described case is not constant as it moves around the earth.

A satellite of mass m moves along an elliptical path arouned the earth. The areal velocity of the satellite is proportional to

A satellite of mass m is in an elliptical orbit around the earth of mass M(M gt gt m) the speed of the satellite at its nearest point ot the earth (perigee) is sqrt((6GM)/(5R)) where R= its closest distance to the earth it is desired to transfer this satellite into a circular orbit around the earth of radius equal its largest distance from the earth. Find the increase in its speed to be imparted at the apogee (farthest point on the elliptical orbit).

A satellite moving in an elliptical orbit around the earth as shown. The minimum and maximum distance of the satellite from earth are 3 units and 5 units respectively. The distance of satellite from earth when it is at P is .........unit

A satellite is revolving round the earth in an elliptical orbit :

A satellite is in an elliptical orbit around the earth with aphelion of 6R_E and perihelion of 3R_E , where R_E is the radius of the earth. The eccentricity of the orbit is

A satellite of Earth is going around in an elliptical orbit. The smallest distance of the satellite from the centre of the earth happens to be 2R (where R = radius of the earth). ind the upper limit of the maximum speed of such a satellite.