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Physics · 2019
JEE Main · 9 January 2019, Shift 2 · Q6
A rod of length 50 cm is pivoted at one end. It is raised such that if makes an angle of 30° from the horizontal as shown and released from rest. Its…
A rod of length $\displaystyle 50$ cm is pivoted at one end. It is raised such that if makes an angle of $\displaystyle 30$° from the horizontal as shown and released from rest. Its angular speed when it passes through the horizontal (in $\displaystyle \mathrm{rad} \mathrm{s}^{-1}$ ) will be ( $\displaystyle \mathrm{g}=10 \mathrm{~ms}^{-2}$ )
Official answer
(1)
$\displaystyle \sqrt{30}$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.