A person in an artificial satellite of the earth experiences weightlessness. The moon is a natural satellite of the earth. Acceleration due to gravity 'g' depends on the distance 'r' from the centre of the earth. Draw a graph showing the variation of 'g' with 'r'.

A person in an artificial satellite of the earth experiences weightlessness. The moon is a natural satellite of the earth. Can a person on the moon experience weight? Why?

A person in an artificial satellite of the earth experiences weightlessness. The moon is a natural satellite of the earth. A satellite is revolving very close to the earth. What is the percentage increase in velocity needed to make it escape from the gravitational field of the earth?

The value of acceleration due to gravity is maximum on the surface of the earth. Obtain an equation for the variation of 'g' with height.

The value of acceleration due to gravity is maximum at the ………….. (1)poles (2)equator (3)centre of the earth