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Good. Now that you know F(u) acting on a material point at x = u of mass m, let there be another rod between x = 2d and x = 3d, of mass m2. What is the net force?
The problem involves calculating the gravitational force exerted between two roads of equal length and separation, each with specified masses. The original poster attempts to apply the gravitational force equation but encounters difficulties with integration and variable representation.
The discussion is ongoing, with various interpretations being explored. Some participants have provided guidance on how to approach the integration and variable assignment, while others express confusion and seek further clarification. There is no explicit consensus on the method to solve the problem.
Participants note that the original poster is in grade 10 and may not be familiar with advanced calculus concepts, which adds to the complexity of the discussion. There are also references to homework rules that prevent providing complete solutions.