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Saturday, 31 October

JEE Main · Physics · Work, Energy and Power

Ballistic Pendulum

JEE Main asked Ballistic Pendulum 3 times in 3 of the 108 shifts Lumi analysed, in 2021, 2022 and 2024. It belongs to Collisions, in Work, Energy and Power (Physics). The longest wait between two years asking it was 2 years.

Updated 2026-10-24

Times asked
3
in 3 shifts
Years
3 of 8
First asked
2021
last in 2024
Pattern
Comes in cycles
across the analysed shifts

Questions on this idea a shift, by year

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

00.050.10’170’200.03’210.03’220’230.05’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 1 in 24 shifts · 2022: 1 in 24 shifts · 2023: 0 in 12 shifts · 2024: 1 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
  • 20241 of 18
  • 20230 of 12
  • 20221 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

Diagram based is the usual form. Skill tested: multi-step.

  • Bullet speed from ballistic pendulum
  • Height reached by bob after bullet embeds

Difficulty

Easy 0Medium 3Hard 0

1 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. 1 Feb 2024, Shift 1 · Q35A simple pendulum of length 1 m has a wooden bob of mass 1 kg. It is struck by a bullet of mass 10−210^{-2} kg moving with a speed of…MediumSingle correct
  2. 27 Jun 2022, Shift 1 · Q60A pendulum of length 2 m consists of a wooden bob of mass 50 g. A bullet of mass 75 g is fired towards the stationary bob with a speed…MediumNumerical value
  3. 16 Mar 2021, Shift 2 · Q14A large block of wood of mass M = 5.99 kg is hanging from two long massless cords. A bullet of mass m = 10 g is fired into the block and…MediumDiagram basedHas a figure

Shifts: 16 Mar 2021, Shift 2, 27 Jun 2022, Shift 1, 1 Feb 2024, Shift 1.

Same topic

Other ideas in Collisions

Collisions has 17 ideas JEE Main has asked; 10 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas