Question

Two particles of masses 1×10-10kg and 4×10-10kg are separated by 2m. What is the Gravitational force between them?

Answer 1

We know that formula of gravitational force is given by

F=GM1M2/r²

Given, G=6.67*$10^{-11}$Nm²/kg  M1=1*$10^{-10}$kg  M2=4*$10^{-10}$kg  r=2m

substituting the values in the equation, we get

F=6.67*$10^{-11}$*1*$10^{-10}$*4*$10^{-10}$/(2)²

F=6.67*$10^{-31}$N