A meteorite burns in the atmosphere before it reaches the earth's surface. What happens to its momentum?

When a coconut falls from a tree and strikes the ground without bouncing. What happens to its momentum?

A small body of superdense material, whose mass is twice the mass of the earth but whose size is very small compared to the size of the earth, starts form rest at a height H lt lt R above the earth's surface, and reaches the earth's surface in time t . then t is equal to

If there were no atmosphere, the average temperature on the surface of earth would be :-

An astronaut of mass m is working on a satellite orbitting the earth at a distance h from the earth's surface the radius fo the earth is R while its mass is M the gravitational pull F_(G) on the astronaut is

A particle falls on earth : (i) from infinity. (ii) from a height 10 times the radius of earth. The ratio of the velocities gained on reaching at the earth's surface is :

A freely falling object eventually stops on reaching the ground. What happens to its kinetic energy?

The mean radius of earth is R, its angular speed on its own axis is w and the acceleration due to gravity at earth's surface is g. What will be the radius of the orbit of a geostationary satellite

A body of mass m kg starts falling from a distance 2R above the earth's surface. What is its kinetic energy when it has fallen to a distance 'R' above the earth's surface ? (where R is the radius of Earth)