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Saturday, 31 October

JEE Main · Physics · Work, Energy and Power

Work by Variable Force

JEE Main asked Work by Variable Force 7 times in 7 of the 108 shifts Lumi analysed, in 2020, 2021, 2022, 2023, 2024 and 2025. It belongs to Work and Kinetic Energy, in Work, Energy and Power (Physics). The longest wait between two years asking it was 1 year. In 2023 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
7
in 7 shifts
Years
6 of 8
First asked
2020
last in 2025
Pattern
Asked most years
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2020, 2021, 2022, 2023, 2024 and 2025. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.

00.10.20’170.08’200.03’210.03’220.14’230.05’240.13’250’26

Raw count: 2017: 0 in 1 shift · 2020: 1 in 12 shifts · 2021: 1 in 24 shifts · 2022: 1 in 24 shifts · 2023: 2 in 12 shifts · 2024: 1 in 18 shifts · 2025: 1 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
  • 20251 of 8
  • 20241 of 18
  • 20232 of 12
  • 20221 of 24
  • 20211 of 24
  • 20201 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: calculation.

  • Work by position-dependent force
  • Final speed under position-dependent retarding force

Difficulty

Easy 5Medium 2Hard 0

4 of the 7 questions had a numerical answer.

Every question

All 7 questions

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

  1. 3 Apr 2025, Shift 2 · Q31A block of mass 1 kg, moving along xx with speed vi=10v_i = 10 m/s enters a rough region ranging from x=0.1x = 0.1 m to x=1.9x = 1.9 m. The…MediumSingle correct
  2. 9 Apr 2024, Shift 2 · Q51A force (3x2+2x−5)(3x^2+2x-5) N displaces a body from x=2x=2 m to x=4x=4 m. Work done by this force is ___________ J.EasyNumerical value
  3. 15 Apr 2023, Shift 1 · Q54A block of mass 10 kg is moving along x-axis under the action of force F=5x NF = 5x\ N. The work done by the force in moving the block from…EasyNumerical value
  4. 11 Apr 2023, Shift 1 · Q59A force F⃗=(2+3x)i^\vec{F} = (2 + 3x)\hat{i} acts on a particle in the xx direction where F is in newton and xx is in meter. The work done by…EasyNumerical value
  5. 28 Jun 2022, Shift 2 · Q33A block of mass 2 kg moving on a horizontal surface with speed of 4 ms−1^{-1} enters a rough surface ranging from xx=0.5 m to xx=1.5 m.…MediumSingle correct
  6. 25 Jul 2021, Shift 2 · Q21A force of F=(5y+20)j^F=(5y+20)\hat{j} N acts on a particle. The workdone by this force when the particle is moved from yy=0 m to yy=10 m is…EasyNumerical value
  7. 4 Sep 2020, Shift 2 · Q3A person pushes a box on a rough horizontal plateform surface. He applies a force of 200 N over a distance of 15 m. Thereafter, he gets…EasySingle correct

Shifts: 4 Sep 2020, Shift 2, 25 Jul 2021, Shift 2, 28 Jun 2022, Shift 2, 11 Apr 2023, Shift 1, 15 Apr 2023, Shift 1, 9 Apr 2024, Shift 2, 3 Apr 2025, Shift 2.

Same topic

Other ideas in Work and Kinetic Energy

Work and Kinetic Energy has 21 ideas JEE Main has asked; 14 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas