The pinion gear A on the motor shaft is given a constant angular acceleration a = 3 rad/s². If the gears A and B have the dimensions shown, determine the angular velocity and angular displacement of the output shaft C, when t =2 s starting from rest. The shaft is fixed to B and turns with it.

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Amal JeevaLv10

26 Feb 2021

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9.6. CALC Att = 0 the current to a dc electric motor is reversed, resulting in an angular displacement of the motor shaft given by e(t) = (250 rad/s) - (20.0 rad/s) - (1.50 rad/s)r. (a) At what time is the angular velocity of the motor shaft zero? (b) Calculate the angular acceleration at the instant that the motor shaft has zero angular velocity. (c) 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? (d) How fast was the motor shaft rotating at t = 0, when the current was reversed? (e) Calculate the average angular velocity for the time period from 1 = 0 to the time calculated in part (a).

A shaft is turning at 65.0 rad/s at time t = 0. Thereafter, its angular acceleration is given by

where α is in rad/s² and t is in seconds. (a) Find the angular speed of the shaft at t = 3.00 s. (b) Through what angle does it turn between t = 0 and t = 3.00 s?

blackleopard116

A shaft is turning at 65.0 rad/s at time t = 0. Thereafter, its angular acceleration is given by α = − 10.0 − 5.00 t where α is in rad/s² and t is in seconds.

(a) Find the angular speed of the shaft at t= 3.00s.

(b) Through what angle does it turn between t=0 and t= 3.00s?