A boat moves so that its position vector, r metres, at time t seconds is given by r = 2t - i+ 2tj 10 The unit vectors i and j are directed east and north respectively. (a) Find the time when the boat is due north of its initial position. ( seconds) (b) Find the time when the boat is travelling north. ( seconds) (c) Find the acceleration of the boat, state the direction of the acceleration. magnitude = ( m/s2), direction = (

A boat moves so that its position vector, r metres, at time t seconds is given by r = 2t - i+ 2tj 10 The unit vectors i and j are directed east and north respectively. (a) Find the time when the boat is due north of its initial position. ( seconds) (b) Find the time when the boat is travelling north. ( seconds) (c) Find the acceleration of the boat, state the direction of the acceleration. magnitude = ( m/s2), direction = (

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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