A wheel starts from rest and attains an angular velocity of 20 radian/s after being uniformly ac...

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A wheel starts from rest and attains an angular velocity of 20 radian/s after being uniformly accelerated for \( 10 \mathrm{~s} \). The total angle in radian through which it has turned in 10 second is
(1) \( 20 \pi \)
(2) \( 40 \pi \)
(3) 100
(4) \( 100 \pi \)
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