If a tunnel is dug along the diameter of earth and a piece of stone is dropped into it, then the stone will

If a hole is bored along the diameter of the earth and a stone is dropped into hole

If hole is bored along the diameter of the earth and a stone is dropped into the hole then the stone

If a tunnel is dug along the diameter of the earth and a ball is dropped into the tunnel, it will have

If a tunnel is dig along the diameter of earth and a body is dropped freely in it. The motion of this body is……….., if there is no frictional force of medium acting on it. (Fill in the blank).

A tunnel is dug along a diameter of the planet. A particle is dropped into it at the surface. The particle reaches the centre of the planet with speed v. If v_(e) is the escape velocity from the surface fo the planet, then-

The escape velocity for a planet is upsilon_e . A tunnel is dug along a diameter of the planet and a small body is dropped into it at the surface. If R is the radius of the planet and g is the acceleration due to gravity at its surface then the body will reach the centre of the planet in time

The escape velocity for a planet is v_(e) . A tunnel is dug along a diameter of the planet and a small body is dropped into it at the surface. When the body reaches the centre of the planet, its speed will be