Two bodies, the masses of which are respectively equal to 10 kg and 20 kg, are at a distance of 1 m.

Two bodies, the masses of which are respectively equal to 10 kg and 20 kg, are at a distance of 1 m. With what force are the bodies attracted?

m1 = 10 kilograms – the mass of the first body;

m2 = 20 kilograms – the mass of the second body;

R = 1 meter – distance between bodies;

G = 6.67 * 10 ^ -11 cubic meter / kilogram per second squared – the gravitational constant.

It is required to determine the force of attraction between bodies F (Newton).

According to the law of universal gravitation:

F = G * m1 * m2 / R ^ 2 = 6.67 * 10 ^ -11 * 10 * 20/1 ^ 2 =

= 6.67 * 10 ^ -11 * 200/1 = 1334 * 10 ^ -11 = 1.3 * 10 ^ -8 Newton.

Answer: bodies are attracted with a force equal to 1.3 * 10 ^ -8 Newton.