Solved: A particle moves where its potential energy is

Chapter , Problem 108

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A particle moves where its potential energy is given byU(r) = U0 [(2/r2) - (1 /r)\. (a) Plot U(r) versus r. Wheredoes the curve cross the U(r) = 0 axis? At what valueof r does the minimum value of U(r) occur? (b) Supposethat the particle has an energy of E = -0.050C/0. Sketch inthe approximate turning points of the motion of the particleon your diagram. What is the maximum kinetic energy of theparticle, and for what value of r does this occur?

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