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A uniform rod of length 1m and mass 0.5...

A uniform rod of length ` 1m` and mass `0.5 kg` rotates at angular speed of `6 rad//sec` about one of its ends. What is the `KE` (in joule) of the rod ?

Text Solution

Verified by Experts

The correct Answer is:
`(3)`
Here, `l = 1m, m = 0.5 kg, omega = 6 rad//sec`
`KE = (1)/(2)I omega^(2) = (1)/(2) ((ml^(2))/(3)) omega^(2) = (1)/(2) xx (0.5 x 1^(2))/(3) xx 6^(2) = 3 J`
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