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## a centrifuge takes 3 minutes to accelerate uniformly from rest to its operating rational speed of 5000 rpm. How many revolutions does the ce

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## Answers ( )

Answer:7500 revolutionsExplanation:Given:

Time taken for the centrifuge (t) = 3 min

Initial angular speed of the centrifuge

(ω₁) =0 rad/min (Initially at rest)Final rotational speed (N₂) = 5000 rpm

So,

final angular speed of the centrifuge is given as:Now, using the

concept of angular motion,the angular acceleration is given as:Now,

angular displacementof the centrifuge is determined using theangular equation of motionwhich is given as:Now, we know that, 1 revolution corresponds to a angular displacement of 2π radians.

So,

2π rad = 1 revolution∴ 15000π rad =

Therefore,

the centrifuge makes 7500 revolutions.