710_Dynamics 11ed Manual

710_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Engineering Mechanics - Dynamics Chapter 20 r 6f t = ω 2 4 rad s = θ 45 deg = Solution: ω 2 ω 1 = α 0 ω 1 ω × = r P 0 r θ () r θ () = v rel 0 v θ () v θ () = v P v rel ω r P × + = a P α r P × ωω r P × () × + 2 ω v rel × + = v P 25.5 13.4 20.5 ft s = a P 161.2 248.9 39.6 ft s 2 = Problem 20-42 At the instant shown, the arm OA of the conveyor belt is rotating about the z axis with a constant angular velocity 1 , while at the same instant the arm is rotating upward at a
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