Calculate the force between two point masses of 50 kg and 100 kg separated by a distance of 10 m.
3.335×10−9 N
Given, mass of first body, m1=50 kg and mass of second body, m2=100 kg
Distance between the two masses is, r=10 m.
According to Universal law of gravitation, force of attraction between two bodies is
F=Gm1m2r2
where, G is the gravitational constant and G=6.67×10−11 Nm2kg−2
∴ F=6.67×10−11×50×100102
⇒ F=33.35×10−10 N
⇒ F=3.335×10−9 N