The position of a bird in the xy-plane is given by = (4.0m-x t²)î + Btĵ where x= 2.5 m/s2 and B = 5 m/s. What is the magnitude of bird's net velocity at 2.0 s?%3D4.0 m/sO7.1 m/sO 11.2 m/s15 m/sO -5.0 m/s

Position of a bird in the x-y plane is given by :r→ = (4 m - αt2)i^ + βt j^ where α = 2.5 ms2β = 5…

Answered: The position of a bird in the xy-plane…

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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The position of a bird in the xy-plane is given by = (4.0m-x t²)î + Btĵ where x= 2.5 m/s2 and B = 5 m/s
. What is the magnitude of bird's net velocity at 2.0 s?
%3D
4.0 m/s
O7.1 m/s
O 11.2 m/s
15 m/s
O -5.0 m/s

Expert Solution

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$P o s i t i o n o f a b i r d i n t h e x - y p l a n e i s g i v e n b y : \vec{r} = (4 m - α t^{2}) \hat{i} + β t \hat{j} w h e r e α = 2.5 \frac{m}{s^{2}} β = 5 \frac{m}{s}$

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