If acceleration due to gravity on the earth's surface at the poles is g and the angular velocity of the earth about the axis passing through the poles is . An object is weighted at the equator & the height of h above the poles by using a spring balance. If the weights are found to be the same, then h is (h <<R where R = radius of the earth)
A satellite is in an all optical orbit around planet P. It is observed that the velocity of the satelite when it is farthest from the planet is 6 times less than that when it is closest to the planet. The ratio of distances b/w the satelite and the planet at closest and farthest point is :-
The height h at which the weight of a body will be the same as that at the same depth h from the surface of the earth is: