A circular ring of mass m and radius r is rotating in a horizontal plane about an axis vertical to its plane. What will its rotational kinetic energy? (Angular speed of ring is w)

A circular ring of mass m and radius r is rotating in a horizontal pla

1.	A circular ring of mass m and radius r is rotating in a horizontal plane about an axis vertical to its plane. What will its rotational kinetic energy? (Angular speed of ring is w)
Answer» <html><body><p>`(1)/(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)<a href="https://interviewquestions.tuteehub.com/tag/mr-549185" style="font-weight:bold;" target="_blank" title="Click to know more about MR">MR</a>^(2)w^(2)`<br/>`mr^(2)w^(2)`<br/>`(1)/(2)mrw^(2)`<br/>`mrw^(2)`</p>Solution :Rotational kinetic <a href="https://interviewquestions.tuteehub.com/tag/energy-15288" style="font-weight:bold;" target="_blank" title="Click to know more about ENERGY">ENERGY</a> = `(1)/(2)<a href="https://interviewquestions.tuteehub.com/tag/iomega-2133375" style="font-weight:bold;" target="_blank" title="Click to know more about IOMEGA">IOMEGA</a>^(2)` but for <a href="https://interviewquestions.tuteehub.com/tag/ring-1189545" style="font-weight:bold;" target="_blank" title="Click to know more about RING">RING</a> <br/> `I=mr^(2)` <br/> `=(1)/(2)mr^(2)omega^(2)`</body></html>