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(b)A centrifuge has a maximum rotation rate of 10,000 rpm and can be stopped in 4 seconds. Assume the deceleration is uniform. The centrifuge radius is 8 cm.
(i)What is the average angular acceleration of the centrifuge?       (2%)
(ii)What is the distance that a point on the rim travels during deceleration?

  • Physics -

    angular acceleration=10,000*2PI/60 / 4 rad/sec

    displacement=wi*t -1/2 10,000*2PI/60 * 4^2

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