posted by rdw .
two objects attract each other gravitationally with a force of 2.5^-10N.when they are 0.25m apart. Their total mass is 4.00kg. Find the individual mass?
F = GmM/r^2
2.5*10^-10 = 6.674*10^-11 * x(4-x) / .25^2
x = 0.059
4-x = 3.941
Must be a bowling ball and a ping pong ball