A round disc of moment of inertia 1_ 2 about its axis perpendicular to its plane and…
Physics · NEET · NTA Exams — Rotational motion
A round disc of moment of inertia \(1_{2}\) about its axis perpendicular to its plane and passing through its centre is placed over another disc of moment of inertia \(A_{1}\) rotating with an angular velocity ω about the same axis. The final angular velocity of the combination of discs is:
- \(\frac{I_{2} w}{I_{1}+I_{2}}\)
- ω
- \(\frac{I_{1} \omega}{I_{1}+I_{2}}\)
- \(\frac{\left[A_{1}+A_{2}\right]^{\omega}}{A_{1}}\)
Answer
(C) I_ 1 I_ 1 +I_ 2
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