A rod of length 50 cm is pivoted at one end. It is raised such that if makes an angle of \[30{}^\circ \]from the horizontal as shown and released from rest. Its angular speed when it passes through the horizontal (in rad \[{{s}^{-1}}\]) will be (\[g=10\text{ }m{{s}^{-2}}\]) [JEE Main 09-Jan-2019 Evening] |
A) \[\sqrt{\frac{30}{2}}\]
B) \[\frac{\sqrt{20}}{3}\]
C) \[\frac{\sqrt{30}}{2}\]
D) \[\sqrt{30}\]
Correct Answer: D
Solution :
[d] |
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