JEE Main 2021 · PhysicsNumerical answerNumerical valueEasyCalculation

JEE Main 22 July 2021, Shift 2, Physics Q22

Question 22 of 90 in this shift, Physics question 22 of 30, Section B.

The position of the centre of mass of a uniform semi-circular wire of radius ‘R’ placed in

x

y

plane with its centre at the origin and the line joining its ends as

x

-axis is given by

\left(0,\frac{xR}{\pi}\right)

. Then, the value of

|x|

is ________.

Official answer

NTA final key.

Chapter: System of Particles and Rotational Motion
Topic: Center of Mass
Idea tested: COM of Circular Arc

Same topic in other shifts

All Center of Mass questions

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Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.