8. Centripetal Forces & Gravitation
Mass Distribution with Calculus
9:15 minutes
Problem 13.34a
Textbook Question
Textbook QuestionA thin, uniform rod has length L and mass M. A small uniform sphere of mass m is placed a distance x from one end of the rod, along the axis of the rod (Fig. E13.34)<IMAGE>. (a) Calculate the gravitational potential energy of the rod–sphere system. Take the potential energy to be zero when the rod and sphere are infinitely far apart. Show that your answer reduces to the expected result when x is much larger than L.
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