7). A particle is moving in three dimensions. Its position vector r is given by r[t] = -4 i + (6- 7 t) j +(1 3 t + 2t2) k where distance components are in meters and time t is in seconds. 7a) What are all 3 components of the velocity vector at t = +5 seconds? 7b) What are all 3 components of the acceleration vector at t +5 seconds?

7). A particle is moving in three dimensions. Its position vector r is given by r[t] = -4 i + (6- 7 t) j +(1 3 t + 2t2) k where distance components are in meters and time t is in seconds. 7a) What are all 3 components of the velocity vector at t = +5 seconds? 7b) What are all 3 components of the acceleration vector at t +5 seconds?

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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7). A particle is moving in three dimensions. Its position vector r is given by
r[t] = -4 I + (6 - 7 t) j +(1 – 3 t + 2t²) k
where distance components are in meters and time t is in seconds.
7a) What are all 3 components of the velocity vector at t = +5 seconds?
7b) What are all 3 components of the acceleration vector at t = +5 seconds?

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