At t=0 the current to a dc electric motor is reversed, resulting in an angular displacement of the motor shaft given by 0(t) =( 250 rad/s)t-( 19.3 rad/s² )t²-(1.60 rad/s³ )t³. Fall How many revolutions does the motor shaft turn through between the time when the current is reversed and the instant when the angular velocity is zero? Express your answer in revolutions. N = Submit Part D IVE ΑΣΦ | Templates W = Request Answer Bw ID ΑΣΦ How fast was the motor shaft rotating at t= 0, when the current was reversed? Express your answer in radians per second. ? word rev ? Review | Constants rad/s

At t=0 the current to a dc electric motor is reversed, resulting in an angular displacement of the motor shaft given by 0(t) =( 250 rad/s)t-( 19.3 rad/s² )t²-(1.60 rad/s³ )t³. Fall How many revolutions does the motor shaft turn through between the time when the current is reversed and the instant when the angular velocity is zero? Express your answer in revolutions. N = Submit Part D IVE ΑΣΦ | Templates W = Request Answer Bw ID ΑΣΦ How fast was the motor shaft rotating at t= 0, when the current was reversed? Express your answer in radians per second. ? word rev ? Review | Constants rad/s

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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