Question

Two objects exert a gravitational force of 3 N on one another when they are 10 m apart. What would that force be if the distance between the two objects were reduced to 5 m?

  A. 1.5 N
  B. 6 N
  C. 12 N
  D. 24 N

Answer 1

force= Universal gravitational constant× Mass of object1(M)× m/r^2
3N=GMm/ 10^2
thus 6NN= GMm/5^2
Thus, 6n