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 from rest at a height H<<R above the earth's surface, and reaches the earth's surface in time t. Then t is equal to

Q.

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 from rest at a height H R above the Earth’s surface, and reaches the Earth’s surface in time t. Then t is equal to

Q. A small body of super dense material, whose mass is half of the earth (but whose size is very small compared to the size of the earth), starts from rest at a height $H$ above the earths surface, and reaches the earths surface in time $t$. Calculate time $t$ assuming that $H$ is very small compared to the radius of the earth. Acceleration due to gravity near the surface of the earth is $g$.

Q. A small body of super dense material, with mass equal to half of that of earth but whose size is very small compared to that of earth, starts from rest at the height h<<R above the earths surface. It reaches the earths surface in time given by

Q. 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

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