Question

a stone of mass 2kg is falling from the certain height find the force of attraction between the Earth and the stone and also find its acceleration​

Answer 1

The force of attraction can be found out by:

F = G Mm/(R+h)2

 

where R = radius of earth

M = mass of earth

m = mass of stone

h = height of stone

G = Gravitational constant

 

And gravitational acceleration can be found out by:

g = F/m

   = GM/(R+h)2

   = GM/R2    (since h is very small as compared to R)