A rigid massless rod.|RIGID BODY DYNAMICS|JEE MAIN 2019

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JEE MAIN 2019

10-01-2019 S2

Question

A rigid massless rod of length 3l 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 :

Select the correct option:

A

$\frac{\mathrm{g}}{2 l}$

B

$\frac{\mathrm{g}}{2 l}$

C

$\frac{\mathrm{g}}{13 l}$

D

$\frac{7 g}{3 l}$

✓ Correct! Well done.

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