Question 10: i) Derive a relation between a conservative force (F (x, y, z)) and the poten- tial energy associated with this force U(x, y, z). ii) What is the result of the following integral, explain your answer briefly: where F. and dr represent the conservative force and the infinitesimal dis- placement vector, respectively, and the integral is a line integral along a closed path. iii) What can you say about the sign of work done by a friction force?

Question 10: i) Derive a relation between a conservative force (F (x, y, z)) and the poten- tial energy associated with this force U(x, y, z). ii) What is the result of the following integral, explain your answer briefly: where F. and dr represent the conservative force and the infinitesimal dis- placement vector, respectively, and the integral is a line integral along a closed path. iii) What can you say about the sign of work done by a friction force?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter15: Oscillations

Section: Chapter Questions

Problem 71CP: Consider the van der Waals potential U(r)=U0[( R 0 r)122( R 0 r)6] , used to model the potential...

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