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Saturday, 31 October

JEE Main · Physics · Laws of Motion

Two-Block Friction Systems

JEE Main asked Two-Block Friction Systems 3 times in 3 of the 108 shifts Lumi analysed, in 2021 and 2022. It belongs to Friction, in Laws of Motion (Physics). The longest wait between two years asking it was 1 year. In 2021 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
3
in 3 shifts
Years
2 of 8
First asked
2021
last in 2022
Pattern
Occasional
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2021 and 2022. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.

00.050.10’170’200.07’210.03’220’230’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 2 in 24 shifts · 2022: 1 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 in 18 shifts · 2025: 0 in 8 shifts · 2026: 0 in 9 shifts.

Shift by shift

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

  • 20260 of 9
  • 20250 of 8
  • 20240 of 18
  • 20230 of 12
  • 20221 of 24
  • 20212 of 24
  • 20200 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Numerical value is the usual form. Skill tested: multi-step.

  • Maximum force for two blocks to move together
  • Maximum force to move stacked blocks together

Difficulty

Easy 0Medium 3Hard 0

2 of the 3 questions had a numerical answer.

Every question

All 3 questions

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

  1. 27 Jun 2022, Shift 1 · Q34A system of two blocks of masses m=2m=2 kg and M=8M=8 kg is placed on a smooth table as shown in figure. The coefficient of static friction…MediumSingle correctHas a figure
  2. 17 Mar 2021, Shift 1 · Q30Two blocks (m = 0.5 kg and M = 4.5 kg) are arranged on a horizontal frictionless table as shown in figure. The coefficient of static…MediumNumerical valueHas a figure
  3. 26 Aug 2021, Shift 2 · Q21The coefficient of static friction between two blocks is 0.5 and the table is smooth. The maximum horizontal force that can be applied to…MediumNumerical valueHas a figure

Shifts: 17 Mar 2021, Shift 1, 26 Aug 2021, Shift 2, 27 Jun 2022, Shift 1.

Same topic

Other ideas in Friction

Friction has 19 ideas JEE Main has asked; 7 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas