Question

Two masses attract each other with the force of 1N. If the first mass is tripled, another mass is quadrupled and the distance between masses is doubled what is the new attraction force. 12.

Answer 1

Initial attractive force is F -1 N The new attractive force if the first mass is tripled and another mass is quadrupled is F' = Gm' M'/d^2 = G (3m) (4M)/d^2 = 12 Gm M /d^2 = 12 F = 12 (1 N) = 12 N