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The wheel rolls without slipping on the horizontal surface. At the instant shown, point A on the cord,
which is securely wrapped around the periphery of the wheel, has a velocity va =4.9 ft/sec and
acceleration aa =1.8 ft/sec?. If R = 2r =1.2 ft, determine the magnitude of the acceleration of the
contact point B on the wheel. Give your answer in ft/sec?.
VA, aA
A
R

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