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Unformatted text preview: m during the time interval that the force is applied. Should the work be equal to the change in kinetic energy? If it is not, name a nonconservative force in the problem. (b) Does this result seem strange to you? The force acts on the mass in the radial direction, basically perpendicular to the motion of the mass around the central ring. Explain, in terms of line integral of the forces acting on the mass, why there is any nonzero amount of work done on the mass to change its kinetic energy. (c) Explain why it is not a violation of the workenergy theorem that it is the velocity in the q direction that changes, even though the force is entirely in the r direction. 7. K&K, problem 4.20. Are there any nonconservative forces acting in this problem?...
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 Fall '05
 ELSER, V

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