A uniform disk with mass 36.1 kg and radius 0.210 m is pivoted at its center about a horizontal, frictionless axle that is stationary. The disk is initially at rest, and then a constant force 32.0 N is applied tangent to the rim of the disk. What is the magnitude a of the resultant acceleration of a point on the rim of the disk after the disk has turned through 0.290 revolution? Express your answer with the appropriate units. HA ? a = 6.548

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