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A wheel of radius 9.2 m starts from rest and rotates about its axis with constant...

A wheel of radius 9.2 m starts from rest and rotates about its axis with constant angular acceleration. After 24.7 s have elapsed, it has rotated through 49 revolutions. a)What is the magnitude of the wheel's angular acceleration? b) What is the magnitude of its angular velocity after 24.7 s have elapsed? (ans for a is 1.01rad/s^2 and 24.9rad/s for b)

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