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The angular frequency of a fan increases...

The angular frequency of a fan increases uniformly from 30 rpm to 60 rpm in `pi` second. A dust particle is present at a distance of 20 cm from axis of rotation. The tangential acceleration of the particle is :

A

`2.8 ms^(-2)`

B

`7.9 ms^(-2)`

C

`9.2 ms^(-2)`

D

`6.2 ms^(-2)`

Text Solution

Verified by Experts

The correct Answer is:
B
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