rotational-motion

Question: The speed of rolling of a ring of mass $M$ changes from $V$to $3V$. What is the change in its kinetic energy



1) $3\,M{{V}^{2}}$
2) $4\,M{{V}^{2}}$
3) $6\,M{{V}^{2}}$
4) $8\,M{{V}^{2}}$
Solution: Explanation: No Explanation
kinetic energy work and power

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