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AIIMS 201826 May
Exam
AIIMS
Year
2018
Date
26 May
Subject
Physics
Chapter
Center of Mass, Momentum and Collision

AIIMS 2018 · 26 May · Physics · Center of Mass, Momentum and Collision

What will be the position of centre of mass of a half disc of...

What will be the position of centre of mass of a half disc of uniform mass density as shown What will be the position of centre of mass of a half disc of uniform mass density as shown

Options

  1. A2aπ\frac{2 a}{\pi}
  2. B4a3π\frac{4 a}{3 \pi}
  3. Caπ\frac{a}{\pi}
  4. D2a3π\frac{2 a}{3 \pi}

Correct answer

B. 4a3π\frac{4 a}{3 \pi}

Step-by-step solution

Fact that C.O.M. of half disc is at distance of 4a3π\frac{4 a}{3 \pi} from centre.
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