2. Choose the graph in Figure 2 that most accurately represents the variation in the gravitational force of attraction between two uniform spheres, as a function of the product of the masses. (a) (b] (c] (d) (e)6. Choose the graph in Figure 2 that most accurately represents the variation in the speed of a moon undergoing uniform circular motion around a planet, as a function of the mass of the planet. (a) (b) (c) (d) (e) X X Figure 2