For a spacecraft going from the Earth toward the Sun, at what distance from the Earth will the gravitational forces due to the Sun and the Earth cancel? Earth's mass: Me = 5.98 ˛ 1024 kg the Sun's mass: Ms = 1.99 ˛ 1030 kg - Earth-Sun distance: r = 1.50 ˛ 1011 m

Newton's law of universal gravitation: Every particle in the universe attracts every other particle with a force that is proportional to the product of their masses and inversely proportional to the square of the distances between them. This force acts along the line joining the two particles.