define universal gravitational constant?

Question

physics

 

Answer 1

Every object in the universe attracts every other object in the universe via gravity. The universal gravitational constant (G) lets us calculate this force of attraction through the Law of Gravity, which is F = GMm/r², where M and m are the masses of the objects, and r is the distance between their centers of mass. The value of G is 6.673×10^-11 N-m²/kg².