There are 2 identical rods of mass "m" and length "l" separated by a distance "l" in such a way that the 2 rods are in a straight line. Find the Gravitational force between these two rods. 2. Relevant equations 3. The attempt at a solution I'm unable to analyse a calculus based strategy such as chosing the small elemnt of mass "dm" length "dx" and so on..