The centers of a 14 kg lead ball and a 150 g lead ball are s

The centers of a 14 kg lead ball and a 150 g lead ball are separated by 14 cm. What gravitational force does each exert on the other? What is the ratio of this gravitational force to the weight of the 150 g ball?

Solution

Part A

6.67 x 10^-11 x14 x0.150/0.14^2= 72 x 10^-10N

Part B

72x10^-10/(0.150 x 9.8) = 4.9 x 10^-9