JEE Main 2020 — Center of Mass Momentum and Collision Question with Solution
JEE Main 2020 (06 Sep Shift 2)
Question
The centre of mass of a solid hemisphere of radius is from the centre of the flat surface. Then value of is
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Show full solutionCorrect answer: 3
Correct answer
3
Step-by-step explanation
Centre of Mass of a solid hemisphere from centre of the flat surface is given by,
It is given that
Therefore,
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This is a previous-year question from JEE Main 2020, 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.