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April 16, 2014

Homework Help: physics

Posted by Sam on Monday, October 18, 2010 at 10:51am.

A 14 N force with a fixed orientation does work on a particle as the particle moves through displacement d = (2i - 4j + 3k) m. What is the angle between the force and the displacement if the change in the particle's kinetic energy is (a) +7.54 J and (b) -7.54 J?

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