Homework Help: Physics

Posted by Oisin on Thursday, August 12, 2010 at 3:21pm.

(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? 牋牋牋(2%)
(ii)What is the distance that a point on the rim travels during deceleration?

Physics - bobpursley, Thursday, August 12, 2010 at 4:08pm
angular acceleration=10,000*2PI/60 / 4 rad/sec

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

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