Question

What the force between two spheres weighing 20 kg each and placed 50cmapart

Answer 1

F=(g*m1*m2)/r^2

g= 6.67 x 10 ^-11

m1=m2=20kg

r=50cm=0.5m

therefore,f=( (6.67 x 10 -11)*20*20)/(0.5)^2

f=1.0672*(10^-7)N