Exam 2 Review - Review for Exam 2 Wednesday Please get out...

Info icon This preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Review for Exam 2 Wednesday 11/04/09 Please get out your calculators and clickers. You can also use your own formula sheet here (but not tonight). Exam 2: Chapters 7-13, 9:4-6 Tonight, 8-10 p.m.
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Consider the following forces: A. Gravitational force B. Kinetic friction force C. Hooke’s law spring force Which of these 3 forces are conservative forces? 1. A and B only 2. A and C only 3. B and C only 4. A, B and C Question: Ch. 7 Solution ± Criteria for a conservative force: 1. The indefinite integral ± F ± d ± r ² can be computed and does not depend on the path the particle takes. 2. The work done by the force only depends on the initial and final positions of the particle and not on the path taken by the particle between the initial and final positions. 3. The net work done on a particle going around a closed path is zero. Forces A and C satisfy these criteria but force B does not.
Image of page 2