3.A person pulls on a block by applying a force F and the block remains at rest. The arrows in the diagram correctly show the directions, but not necessarily the magnitudes, of the various forces on the block. Which of the following relations among the force magnitudes F, W, N, f must be true? f is friction and W is the weight (the force of gravity)? F W ↑ a.F=f and N = W N b.F=f and N > W c.F>f and N < W d.F>f and N = W e.None of the above choices is correct.

3.A person pulls on a block by applying a force F and the block remains at rest. The arrows in the diagram correctly show the directions, but not necessarily the magnitudes, of the various forces on the block. Which of the following relations among the force magnitudes F, W, N, f must be true? f is friction and W is the weight (the force of gravity)? F W ↑ a.F=f and N = W N b.F=f and N > W c.F>f and N < W d.F>f and N = W e.None of the above choices is correct.

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Description: 3.A person pulls on a block by applying a force F andthe block remains at rest. The arrows in the diagramcorrectly show the directions, but not necessarily themagnitudes, of the various forces on the block.Which of the following relations among the

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 21P: Two teenagers are pulling on ropes attached to a tree. The angle between the ropes is 30 . David...

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