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OpenStudy (anonymous):
MEDAL GIVEN TO CORRECT ANSWER. A point at the end of a spinning helicopter blade has a centripetal acceleration of 105.8 m/s2. If the velocity of the blade at this point is 23 m/s, how long is the helicopter blade? A. 5.0 m B. 7.2 m C. 8.2 m D. 4.6 m
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