State and explain Universal law of Gravitaion

According to Universal law of gravitation-"Every body in this universe attract every other body with a force which is directly proportional to the product of their masses and inversly proportional to the square of distance between them."
Lets assume two bodies having masses 'm'₁ and 'm'₂ respectively and separated by a distance of 'r'.Then law of gravitation states that force of attraction 'F' between them will be:-
F directly proportional to m₁*m₂ ------------- eq.1
and, F inversly proportional to 1/r² --------------------------eq.2
combining both the equations we will get
F = G m₁* m/ r²
Where,
G= gravitation constant ,6.67*10^-11Nm²/Kg²
Thanks & regards
Aarti Gupta
askiitians Faculty