THI Amana KI SHATProhEALTms.microsoft.com/_#/pdf/viewer/teams/https:-2F-2Fhinducollegedelhi.sharepoint.com-2Fsites-2FB.Sc.HPhysicsadmission2021-24copy-2F...Q SearchPRACTICE PROBLEMSA quadrilateral ABCD has masses 1,2,3 and 4 units lócated at its vertices A(-1,-2,2), B(3,2,-1), C(1,-2,4) and D(3,1,2). Find the coordinates of the C.M. [(2,0,2)]2. Three particles of masses 2,1,3 respectively have position vectors = 5tî-2t2j + (3t – 2)k , 2= (2t – 3)î + (12 – 5t²)ĵ + (4 + 6t – 3t3)k, 3 = (2t – 1)î –(t2 + 2)î – t3k, where t is the time. Find (a) the velocity of C.M. at time t=1 and(b) the total linear momentum of the system at time t=1. [(a) 3î – 4ĵ – k, (b)181- 12j- 6k.]1.Find the impulse developed by a force given by F = 4tî + (6t2 – 2)ĵ + 12k fromt=0 to t=2. [8î + 12ĵ + 24k]3.4.A particle of unit mass moves in a force field given by F = (3t² – 4t)î + (12t –6)î + (6t – 12t²)k wheret is the time.a) Find the change in momentum of the particle from t=1 to t=2. [î + 12ĵ – 19k]b) If the velocity at t=1 is 4î– 5ĵ + 10k, what is the velocity at t=2? [5i + 7j -9k]Dr Pragati Ashdhir, Associate Professor, Department of Physics, Hindu College

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Answered: 1. A quadrilateral ABCD has masses…

1. A quadrilateral ABCD has masses 1,2,3 and 4 units located at its vertices A(-1,-2, 2), B(3,2,-1), C(1,-2,4) and D(3,1,2). Find the coordinates of the C.M. [(2,0,2)]

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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