A 12 N force with a fixed orientation does work on a particle as the particle moves through displacement d = (2î – 4) + 4k ) m .What is the angle between the force and the displacement if the change in the particle's kinetic energy is (a) +7.20 J and (b) -7.20 J?

A 12 N force with a fixed orientation does work on a particle as the particle moves through displacement d = (2î – 4) + 4k ) m .What is the angle between the force and the displacement if the change in the particle's kinetic energy is (a) +7.20 J and (b) -7.20 J?

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter7: Energy Of A System

Section: Chapter Questions

Problem 7.11P: A force F = (6i 2j) N acts on a panicle that under-goes a displacement r = (3i + j) m. Find (a) the...

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Question

A 12 N force with a fixed orientation does work on a particle as the particle moves through displacement
á = (2i – 4 + 4k ) m .What is the angle between the force and the displacement if the change in the
particle's kinetic energy is (a) +7.20 J and (b) -7.20 J?
(a) Number
Units
(b) Number
i
Units
>
>

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