Learn

Saturday, 31 October

JEE Main · Physics · System of Particles and Rotational Motion

Discrete System COM

JEE Main asked Discrete System COM 5 times in 5 of the 108 shifts Lumi analysed, in 2022, 2024 and 2026. It belongs to Center of Mass, in System of Particles and Rotational Motion (Physics). The longest wait between two years asking it was 2 years. In 2022 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
5
in 5 shifts
Years
3 of 8
First asked
2022
last in 2026
Pattern
Frequent
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2022, 2024 and 2026. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.

00.10.20’170’200’210.10’220’230.05’240’250.11’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 0 in 24 shifts · 2022: 3 in 24 shifts · 2023: 0 in 12 shifts · 2024: 1 in 18 shifts · 2025: 0 in 8 shifts · 2026: 1 in 9 shifts.

Shift by shift

Each square is one analysed shift, in date order. Open a filled one for that paper.

  • 20261 of 9
  • 20250 of 8
  • 20241 of 18
  • 20230 of 12
  • 20223 of 24
  • 20210 of 24
  • 20200 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Single correct is the usual form. Skill tested: calculation.

  • Centre of mass of three-point-mass system
  • Centre of mass of discrete masses at corners

Difficulty

Easy 5Medium 0Hard 0

2 of the 5 questions had a numerical answer.

Every question

All 5 questions

From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.

  1. 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 (pp) of normal bisector, as shown in…EasySingle correctHas a figure
  2. 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
  3. 27 Jun 2022, Shift 1 · Q35Two blocks of masses 10 kg and 30 kg are placed on the same straight line with coordinates (0,0)(0, 0) cm and (x,0)(x, 0) cm respectively. The…EasySingle correct
  4. 29 Jul 2022, Shift 1 · Q36Two bodies of mass 1 kg and 3 kg have position vectors i^+2j^+k^\hat{i} + 2\hat{j} + \hat{k} and −3i^−2j^+k^-3\hat{i} - 2\hat{j} + \hat{k} respectively.…EasySingle correct
  5. 25 Jul 2022, Shift 2 · Q52Three identical spheres each of mass M are placed at the corners of a right angled triangle with mutually perpendicular sides equal to 3 m…EasyNumerical value

Shifts: 27 Jun 2022, Shift 1, 25 Jul 2022, Shift 2, 29 Jul 2022, Shift 1, 1 Feb 2024, Shift 1, 6 Apr 2026, Shift 1.

Same topic

Other ideas in Center of Mass

Center of Mass has 13 ideas JEE Main has asked; 5 of them came up in more than one question.

Topic analysisChapter analysisStudy this chapterAll repeated ideas