e a rope to apply a force FA, as part a of the drawing shows. By itself, wever, force FA is insufficient. Therefore, two additional forces FB d Fc are applied, as in part b of the drawing. Each of these additional rces has the same magnitude F. The magnitude of the resultant force ting on the elephant in part b of the drawing is k times larger than at in part a. Find the ratio F/FA when k = 1.61. (a) (b) FB 23° 23°
e a rope to apply a force FA, as part a of the drawing shows. By itself, wever, force FA is insufficient. Therefore, two additional forces FB d Fc are applied, as in part b of the drawing. Each of these additional rces has the same magnitude F. The magnitude of the resultant force ting on the elephant in part b of the drawing is k times larger than at in part a. Find the ratio F/FA when k = 1.61. (a) (b) FB 23° 23°
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Component of FA perpendicular to FA = 0 because component ofany vector perpendicular to the vector = 0.
If we take components of FB and FC perpendicular to FA, then theycancel each other because FA and FB are on opposite sides of FA andmake same angle with FA.
Therefore, resultant force = sum of components of the three forcesalong FA.
Or resultant force = FA + F cosθ + F cosθ
= FA+ 2F cosθ
= FA + 2F cos 23.0°
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