Question

State and deduce the expression for newton's universal law of gravitation

Answer 1

universal law of gravitation states that every object in the universe attracts every other object in the universe with a force that is directly propotional to the product of their masses, and inversley propotional to the square of the distance between them.

F ∝ M * m

F ∝ 1/d^2

(to make it = we have to add a constant; G. universal gravitational constant.)

F = GMm/d^2

value of G= 6.67 * 10^-11 Nm^2/kg^2