M1 is a spherical mass (33.4 kg) at the origin. M2 is also a spherical mass (14.5 kg) and is located on the x-axis at x = 68.2 m. At what value of x would a third mass with a 10.0 kg mass experience no net gravitational force due to M1 and M2?

Answer 1

(33.4 * 10.0) / x^2 = (14.5 * 10.0) / (68.2 - x)^2

33.4 * (68.2 - x)^2 = 14.5 x^2

expand the square , and solve for x

Answer 2

you know, @araya, you could have just fixed your original post, rather than changing your name and starting a new one.