Question

If the gravitational force is 4in,then find out its mass​

Answer 1

Answer:

the mass of on object does not decrease in a gravitational field (it measures an intrinsic property of the body: its inertia). What can decrease is the weight of the object, that is the product of the mass times the gravitational acceleration, m*g, in the classical, not-general relativistic, picture. Infact, inside a sphere with uniform average density d, the gravitational acceleration g goes linearly with distance R from center: g = 4*pi*G*d*R/3 (as a consequence of Gauss theorem applied to Newton's gravitational law) so that at R=0, you get g = 0 and therefore no weight (but still the same mass m).