Posted by Cooper on Wednesday, November 9, 2011 at 3:50pm.
In each hand you hold a 0.15 kg apple.
What is the gravitational force exerted by each apple on the other when their separation is 0.25 m?
What is the gravitational force exerted by each apple on the other when their separation is 0.50 m?

Physics  bobpursley, Wednesday, November 9, 2011 at 4:09pm
Force=GM1M2/distance^2
Notice if you figure one, the next distance is twice, so force is 1/4 of the original.