10. Conservation of Energy
Gravitational Potential Energy
13:30 minutes
Problem 8.52
Textbook Question
Textbook Question(II) A sphere of radius r₁ has a concentric spherical cavity of radius r₂ (Fig. 8–42). Assume this spherical shell of thickness r₁ - r₂ is uniform and has a total mass M. Show that the gravitational potential energy of a mass m at a distance r from the center of the shell ( r > r₁ ) is given by
U = - (GmM/r).
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