1. The problem statement, all variables and given/known data A bowling ball (mass = 5.9 kg, radius = 0.11 m) and a billiard ball (mass = 0.36 kg, radius = 0.028 m) may each be treated as uniform spheres. What is the magnitude of the maximum gravitational force that each can exert on the other? 2. Relevant equations F=-Gm1m2/r^2 3. The attempt at a solution 6.67*10^-11*5.9*.36/-(.11+.028)^2 = -7.43913043 × 10^-9 N right?
The formula is usually given without a minus sign. The question also asks for the magnitude of the force, wich has to be positive.