rotational-motion

Question: A uniform thin rod of length l is suspended from one of its ends and is rotated at f rotations per second. The rotational kinetic energy of the rod will be

1) $\frac{2}{3}{{\pi }^{2}}{{f}^{2}}m{{l}^{2}}$

2) $\frac{4}{3}{{f}^{2}}m{{l}^{2}}$

3) $4{{\pi }^{2}}{{f}^{2}}m{{l}^{2}}$

4) Zero

Solution:

Explanation: No Explanation

kinetic energy work and power

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