The problem is as follows: A bowling ball (mass = 7.2kg, radius = 0.11 m) and a billiard ball (mass = 0.39 kg, radius = 0.028 m) may be treated as uniform spheres. What is the magnitude of the maximum gravitional force that each can exert on the other. I already asked my physics teacher for help, sat with the man for like 10 minutes after shool but he still couldn't help me under stand why the answer to the problem was what it was. I am thinking, because of how the question is stated, that the answer is the maxiumum amount of force that both balls can sucessfully exert on each other. It cannot be the greater force exerted by one or the because in that case the other ball wound't be able to exert anywhere near that amount of force and the question says ".. maxiumum gravitional force that each can exert on the other..." - stressing the word EACH. So coudl someone explain to me what kind of answer this problem is looking for? Thanks.