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Starting from rest a wheel rotates with ...

Starting from rest a wheel rotates with uniform angular acceleration `2pirads^(-2)`. After 4s, if the angular acceleration ceases to act, its angular displacement in the next 4s is

A

`8 pi rad`

B

`16 pi rad`

C

`24 pi rad`

D

`32 pi rad`

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The correct Answer is:
D
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