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A disk of radius 215 cm rotates about its axis. Points on the disk\'s rim undergo tangential acceleration of magnitude 1.13 m/s2. At a particular time the rim has a tangential speed of 1.77 m/s. At a time 0.907 seconds later, what is the tangential speed, v, of a point on the rim, the magnitude of the point\'s radial acceleration, ar, and the magnitude of its total acceleration, atot?

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