Starting from rest, a wheel undergoes constant angular acceleration for a period of time T. At what time after the start of rotation does the wheel reach an angular speed equal to its average angular speed for this interval?

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  1. U=0,t=T,

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  2. 'A ball starts from rest and accelerates at 0.505 m/s2 while moving down an inclined plane 9.95 m long. When it reaches the bottom, the ball rolls up another plane, where, after moving 16.0 m, it comes to rest. (a) What is the speed of the ball at the bottom of the first plane? (b) How long does it take to roll down the first plane? (c) What is the acceleration along the second plane

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