The colonization of Mars is a favorite topic among science fiction writers. It is a smaller planet than Earth and further from the Sun. Its radius is 0.5 times that of Earth, and its mass is 0.1 times that of Earth. It is 1.5 times further from the Sun than Earth. (Note: On Earth, the acceleration due to gravity is 10 m/s2. Also, we have G = 6.67 x 10–11 N m2/kg2.)
How does the force of attraction between the Sun and Mars compare with that between the Sun and Earth?