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CBSE Class 11-science Answered

A wheel is rotating at a rate of 1000rpm and its kinetic energy is 10^6 J. Determine the moment of inertia of the wheel about its axis of rotation.
Asked by shobhit_dc | 19 Jan, 2012, 01:57: PM
answered-by-expert Expert Answer

The Angular velocity of the body is given by

?=2?x1000/60 per second

= 100?/3 per second

KE = I?2/2 = 106

So I =2x106/?2

I = 3x3x2x106/104?2 = 1800/?2 = 181.96 Js2
 
Thank you
Answered by | 19 Jan, 2012, 03:54: PM

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