Gravitation Tes...

Weight of a body of mass $$m$$ decreases by $$1%$$ when it is raised to height h above the earth's surface. If the body is taken to a depth $$h$$ in a mine, then in its weight will

The gravitational potential energy of a body at a distance $$r$$ from the centre of earth is $$U$$. Its weight at a distance $$2r$$ from the centre of earth is

Which of the following statement is wrong for acceleration due to gravity.

The value of '$$g$$' reduces to half of its value at surface of earth at a height '$$h$$', then

Acceleration due to gravity at earth's surface is '$$g$$' m/s$$^2$$. Find the effective value of acceleration due to gravity at a height of $$32 km$$ from sea level :($$R_e = 6400 km$$).

A body of mass $$m$$ is lifted up from the surface of earth to a height three times the radius of the earth $$R$$.The change in potential energy of the body is

At some planet '$$g$$' is $$1.96 m/s^2$$. If it is safe to jump from a height of $$2m$$ on earth, then what should be corresponding safe height for jumping on that planet

On the surface of earth acceleration due to gravity is g and gravitational potential is V.

A missile is lauched with a velocity less than the escape velocity. Sum of its kinetic energy and potential energy is.

The escape velocity for a planet is $$\displaystyle v_{e}$$ A particle starts from rest at a large distance from the planet reaches the planet only under gravitational attraction and passes through a smooth tunnel through its centre Its speed at the centre of the planet will be