Answer:
F = cM1M2/d²
Explanation:
The force F of attraction between two bodies varies jointly as the weights of the two bodies and inversely as the square of the distance between them. Express this fact as a variation using c as a constant. Use M1 and M2 for the weights of the two bodies.
F = force F of attraction between two bodies
M1 = weights of body 1
M2 = weights of body 2
d = distance between them
c = constant of proportionality
F = (c*M1*M2) / d²
F = cM1M2/d²