JEE Main 2024 · PhysicsNumerical answerNumerical valueEasyCalculation

JEE Main 4 April 2024, Shift 2, Physics Q58

Question 58 of 90 in this shift, Physics question 28 of 30, Section B.

In a system two particles of masses

m_1

= 3

kg

and

m_2

= 2

kg

are placed at certain distance from each other. The particle of mass

m_1

is moved towards the center of mass of the system through a distance 2 cm. In order to keep the center of mass of the system at the original position, the particle of mass

m_2

should move towards the center of mass by the distance ________

cm

Official answer

NTA final key.

Chapter: System of Particles and Rotational Motion
Topic: Center of Mass
Idea tested: Internal Mass Displacement

Same topic in other shifts

All Center of Mass questions

2 Apr 2026, Shift 2 · Q28Two blocks of masses 2 kg and 1 kg respectively, are tied to the ends of a string which passes over a light frictionless pulley as shown…MediumSingle correctHas a figure
6 Apr 2026, Shift 1 · Q33The position of center of mass of three masses 2 kg, 3 kg and 15 kg placed with respect to mid point ( $p$ ) of normal bisector, as shown in…EasySingle correctHas a figure
6 Apr 2026, Shift 2 · Q32Two identical bodies A and B of equal masses have initial velocities $\vec{v}_1=4\hat{i}$ m/s and $\vec{v}_2=4\hat{j}$ m/s respectively.…MediumSingle correct
7 Apr 2025, Shift 1 · Q29A rod of length 5 L is bent right angle keeping one side length as 2 L. The position of the centre of mass of the system: (Consider L = 10…EasySingle correctHas a figure
8 Apr 2024, Shift 1 · Q52A uniform thin metal plate of mass 10 kg with dimensions is shown. The ratio of $x$ and $y$ coordinates of center of mass of plate in…MediumNumerical valueHas a figure
1 Feb 2024, Shift 1 · Q52The identical spheres each of mass 2M are placed at the corners of a right angled triangle with mutually perpendicular sides equal to 4 m…EasyNumerical value

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.