.How fast was the motor shaft rotating at t = 0, when the current was reversed?Calculate the average angular velocity for the time period from t=0 to t = 3.95. Att=0 the current to a dc electric motor is reversed, resulting in an angular displacementof the motor shaft given by 0(t) =( 240 rad/s)t—( 20.9 rad/s² )t²—( 1.60 rad/s³ )t³.

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Answered: At t=0 the current to a dc electric…

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) =(240 rad/s)t-(20.9 rad/s² )t2-(1.60 rad/s³ )t³.

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Chapter1: Units, Trigonometry. And Vectors

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How fast was the motor shaft rotating at t = 0, when the current was reversed?
Calculate the average angular velocity for the time period from t=0 to t = 3.95.

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) =( 240 rad/s)t—( 20.9 rad/s² )t²—( 1.60 rad/s³ )t³.

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