A circular disc of radius \(b\) has hole of radius \(a\) at its center (see figure). It the mass.... VIDEO
A circular disc of radius \(b\) has hole of radius \(a\) at its center (see figure). It the mass per unit area of the disc varies as \(\left(\frac{\sigma_0}{r}\right)\) then the radius of gyration of the disc about its axis passing through the centre is :https://bit.ly/YTAI_PWAP πPW Website - https://www.pw.live
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