Physics · 2019
JEE Main · 10 January 2019, Shift 2 · Q6
A rigid massless rod of length 3 l has two masses attached at each end as shown in the figure. The rod is pivoted at point P on the horizontal axis…
A rigid massless rod of length $\displaystyle 3 l$ has two masses attached at each end as shown in the figure. The rod is pivoted at point P on the horizontal axis (see figure). When released from initial horizontal position, its instantaneous angular acceleration will be:
Official answer
(4)
$\displaystyle \frac{g}{13 l}$
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.