What is the magnitude of the gravitational force between two objects of mass 10 kg and 20 kg separated by a distance of 1 meter? (G = 6.67 x 10⁻¹¹ Nm²/kg²)
Correct: A
The gravitational force is given by F = G(m₁m₂)/r² = (6.67 x 10⁻¹¹) * (10 * 20) / (1²) = (6.67 x 10⁻¹¹) * 200 = 1.334 x 10⁻⁸ N.