Two 700-kg masses (1543 lb) are separated by a distance of 76 m. Using Newton's law of gravitation, find the magnitude of the gravitational force exerted by one mass on the other. (Use G = 6.67 x 10-11 N.m2/kg2.) Newton's Law of Gravitation The gravitational force between two objects is proportional to the mass of each ook object and inversely proportional to the square of the distance between the centers of the masses: lint rint F = rences where G is a constant. The direction of the force is attractive and lies along the line joining the centers of the two masses (fig. 5.19). m, m, F. F, figure 5.19 The gravitational force is attractive and acts along the line joining the center of the two masses. It obeys Newton's third law of motion (F, = - F,). 0:00 / 5:04 480p 1x co The magnitude of the gravitational force exerted by one mass on the other is * 10-9 N