4. ) The forces F1 = (2i + bj) N, F2 = (-i+2j) N and F3 = (ai – 4j) N act through the points with position vectors ri =(i+ 3j) m, r2 = (xi + 5j) m and rs = (-i+j) m respectively. Given that this system of forces is equivalent to a couple of magnitude 12 N m, find (a) the values of the scalars a and b, (b) the possible values of the scalar x. (c) (ii) A particle starts from rest and moves in a straight line on a smooth horizontal surface. the speed of the particle. Given that v= when t= 1, show that v = 1/4(e2t. 1).

4. ) The forces F1 = (2i + bj) N, F2 = (-i+2j) N and F3 = (ai – 4j) N act through the points with position vectors ri =(i+ 3j) m, r2 = (xi + 5j) m and rs = (-i+j) m respectively. Given that this system of forces is equivalent to a couple of magnitude 12 N m, find (a) the values of the scalars a and b, (b) the possible values of the scalar x. (c) (ii) A particle starts from rest and moves in a straight line on a smooth horizontal surface. the speed of the particle. Given that v= when t= 1, show that v = 1/4(e2t. 1).

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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