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NEET 2022 (Phase 1) · Centre of Mass of Discrete Particles

Centre of Mass of Discrete Particles question from NEET 2022 (Phase 1)

Q10NEET 2022 · PHASE 1Easy

Centre of Mass of Discrete Particles

Two objects of mass 10 kg and 20 kg respectively are connected to the two ends of a rigid rod of length 10 m with negligible mass. The distance of the center of mass of the system from the 10 kg mass is:

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Answer: (b)

Take the 10 kg mass as origin: $x_{cm} = \frac{20 \times 10}{10 + 20}$
$x_{cm} = \frac{200}{30} = \frac{20}{3}$ m
So the answer is (b) $\frac{20}{3}$ m.

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