The force acting on a particle is given by F(r) = (A/r2)r̂, where A is a positive constant. (a) What are the dimensions of A? Can the force be negative? (b) Sketch F versus r. (c) Find the work done by the force on the particle as it moves from ri = r0 to rf = 5r0. (Use the following as necessary: A, r0.) (d) Check your answer by comparing it with the case of a particle moving under the influence of gravitational force near a planet.

The force acting on a particle is given by F(r) = (A/r2)r̂, where A is a positive constant. (a) What are the dimensions of A? Can the force be negative? (b) Sketch F versus r. (c) Find the work done by the force on the particle as it moves from ri = r0 to rf = 5r0. (Use the following as necessary: A, r0.) (d) Check your answer by comparing it with the case of a particle moving under the influence of gravitational force near a planet.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter9: Energy In Nonisolated Systems

Section: Chapter Questions

Problem 32PQ

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