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The drive propeller of a ship starts from rest and accelerates at 2.44 x 10-3 rad/s2 for 2.43 x 103 s. For the next 1.19 x 103 s the propeller rotates at a constant angular speed. Then it decelerates at 2.19 x 10-3 rad/s2 until it slows (without reversing direction) to an angular speed of 2.07 rad/s. Find the total angular displacement of the propeller.

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