The diagram below shows the force exerted on object m1 due to the gravitational attraction between m1 and m2. What is true about the force exerted on m2 due to the gravitational attraction between m1?

The force exerted on m2 due to the gravitational attraction with m1 is equal in magnitude but opposite in direction to the force exerted on m1. This is known as Newton's third law of motion - for every action, there is an equal and opposite reaction.