Find the escape velocity of particle of mass `m` which is situated at a radial distance `r` (from centre of earth) above the earth's surface. `M` is the mass earth.

A satellite of mass m is placed at a distance r from the centre of earth (mass M ). The mechanical energy of the satellite is

A satellite of mass m is revolving around the earth at a distancer r from the centre of the earth. What is its total energ?

The escape velocity of a sphere of mass m is given by (G= univesal gravitational constant, M_(e) = mass of the earth and R_(e) = radius of the earth)

The escape velocity of a sphere of mass m is given by (G= univesal gravitational constant, M_(e) = mass of the earth and R_(e) = radius of the earth)

The work done liftting a particle of mass 'm' from the centre of the earth to the surface of the earth is

If M_(e) is the mass of earth and M_(m) is the mass of moon (M_(e)=81 M_(m)) . The potential energy of an object of mass m situated at a distance R from the centre of earth and r from the centre of moon, will be :-

If M_(e) is the mass of earth and M_(m) is the mass of moon (M_(e)=81 M_(m)) . The potential energy of an object of mass m situated at a distance R from the centre of earth and r from the centre of moon, will be :-

If M_(e) is the mass of earth and M_(m) is the mass of moon (M_(e)=81 M_(m)) . The potential energy of an object of mass m situated at a distance R from the centre of earth and r from the centre of moon, will be :-

A tunnel is dug across the diameter of earth. A ball is released from the surface of Earth into the tunnel. The velocity of ball when it is at a distance (R )/(2) from centre of earth is (where R = radius of Earth and M = mass of Earth)