JEE Main 2021 — Center of Mass Momentum and Collision Question with Solution
JEE Main 2021 (17 Mar Shift 2)
Question
The disc of mass with uniform surface mass density is shown in the figure. The center of mass of the quarter disc (the shaded area) is at the position where is _______ . (Round off to the Nearest Integer) [ is an area as shown in the figure]

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Show full solutionCorrect answer: 4
Step-by-step explanation
C.O.M of quarter disc is at
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This is a previous-year question from JEE Main 2021, covering the Center of Mass Momentum and Collision chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.