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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 discussion centers on calculating the gravitational force exerted by two parallel roads of length x, separated by distance x, with masses k and p. The primary equation used is Newton's law of gravitation, expressed as F = G(m1*m2)/r^2. Participants emphasize the importance of correctly defining mass elements and integration variables, suggesting the use of distinct symbols for clarity. The final consensus indicates that the approximate force is F = (Gm1m2)/4x^2, contingent on proper calculus application for precise results.
PREREQUISITESStudents studying physics, particularly those in high school or early college, who are learning about gravitational forces and calculus applications in physics problems.