Question: The angular velocity of a process control motor is = (20 1 / 2 t 2 ) 22rad/s, where t is in seconds.

The angular velocity of a process control motor is ω = (20 – 1 / 2 t2) 22rad/s, where t is in seconds.

a. At what time does the motor reverse direction?

b. Through what angle does the motor turn between t = 0 s and the instant at which it reverses direction?

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