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During a certain time interval, the angular position of a swinging door is described by 6 = 4.91 + 11.0t + 1.91t2, where 6 is

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During a certain time interval, the angular position of a swinging door is described by 6 = 4.91 + 11.0t + 1.91t2, where 6 is in radians and t is in seconds. Determine the angular position, angular speed, and angular acceleration of the door at the following times. (a) t = 0 8 = ] rad m = rad/s (b) t = 3.05 s 6 = rad

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