115_Dynamics 11ed Manual

115_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Engineering Mechanics - Dynamics Chapter 12 vr ' 2 r θ ' () 2 + = v 1.323 m s = * Problem 12–160 The rod OA rotates counterclockwise with a constant angular velocity of ' . Two pin-connected slider blocks, located at B , move freely on OA and the curved rod whose shape is a limaçon described by the equation r = b ( c cos( )). Determine the acceleration of the slider blocks at the instant = 1 . Given: ' 5 rad s = b 100 mm = c 2 = 1 120 deg = Solution: θθ 1 = rb c cos = r' b sin ' = r'' b cos ' 2 = a r'' r ' 2 2 2 r' ' 2 + =
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