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Saturday, 31 October

JEE Main · Physics · Work, Energy and Power

Work via Dot Product

JEE Main asked Work via Dot Product 2 times in 2 of the 108 shifts Lumi analysed, in 2021 and 2026. It belongs to Work and Kinetic Energy, in Work, Energy and Power (Physics). The longest wait between two years asking it was 5 years.

Updated 2026-10-24

Times asked
2
in 2 shifts
Years
2 of 8
First asked
2021
last in 2026
Pattern
Occasional
across the analysed shifts

Questions on this idea a shift, by year

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

00.10.20’170’200.03’210’220’230’240’250.11’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 1 in 24 shifts · 2022: 0 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 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
  • 20240 of 18
  • 20230 of 12
  • 20220 of 24
  • 20211 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: calculation.

  • Work from vector force and displacement
  • Force ratio for equal work at different angles

Difficulty

Easy 2Medium 0Hard 0

2 of the 2 questions had a numerical answer.

Every question

All 2 questions

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

  1. 4 Apr 2026, Shift 1 · Q46A 11 kg block subjected to two simultaneous forces (2i^+3j^+4k^)\left(2\hat{i}+3\hat{j}+4\hat{k}\right) N and…EasyNumerical value
  2. 27 Aug 2021, Shift 1 · Q22Two persons A and B perform same amount of work in moving a body through a certain distance d with application of forces acting at angles…EasyNumerical value

Shifts: 27 Aug 2021, Shift 1, 4 Apr 2026, Shift 1.

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