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Calculate the angular acceleration of a ...

Calculate the angular acceleration of a centrifuge which is accelerated from rest to 350 r.p.s. in 220 s.

A

10 rad `s^-2`

B

20 rad `s^-2`

C

25 rad `s^-2`

D

30 rad `s^-2`

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The correct Answer is:
A
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