Weightlessness experienced while orbiting the earth in space-ship, is the result of
Inertia
Acceleration
Zero gravity
Free fall towards earth
(d)
Let $g$ be the acceleration due to gravity at earth's surface and $K$ be the rotational kinetic energy of the earth. Suppose the earth's radius decreases by $2\%$ keeping all other quantities same, then
When a body is taken from the equator to the poles, its weight
How much radius of earth at equator is grater than the radius at poles of earth ?
Obtain general equation of gravitation force at distance $r$ from the centre of earth and derive the equation of acceleration due to gravity on the surface of earth.
If radius of the earth is $6347\, km ,$ then what will be difference between acceleration of free fall and acceleration due to gravity near the earth's surface ?
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