Centre of Mass & Linear Momentum has 54 questions in JEE Main papers from 2020 to 2026, about 7.7 per year across all shifts. All 54 are in the free PDF, with an answer key. The most asked topic is Centre of Mass (25 questions), followed by Conservation of Linear Momentum (14) and Impulse-Momentum Theorem (12).
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Source: official NTA JEE Main papers · Updated
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4 of this chapter's questions came back in a later paper (2021–2026). See the most repeated.
Centre of Mass & Linear Momentum had about 0.3 questions per shift in recent JEE Main papers (2024–26). Most asked topic: Centre of Mass. About 5 questions in the 2026 papers.
It came up in about 16 of the 2024–26 shifts in our bank. Question types in 2020–2026: about 38 MCQs and about 16 numerical.
| Year | Questions | Per shift | MCQ | Numerical |
|---|---|---|---|---|
| 2026 | 5 | 0.3 | 5 | 0 |
| 2025 | 3 | 0.2 | 3 | 0 |
| 2024 | 11 | 0.6 | 8 | 3 |
| 2023 | 7 | 0.3 | 6 | 1 |
| 2022 | 11 | 0.5 | 6 | 5 |
| 2021 | 10 | 0.4 | 5 | 5 |
| 2020 | 7 | 0.4 | 5 | 2 |
| 2020–2026 | 54 | 0.4 | 38 | 16 |
| Topic | Questions |
|---|---|
| Centre of Mass | 25 |
| Conservation of Linear Momentum | 14 |
| Impulse-Momentum Theorem | 12 |
| Rocket Propulsion | 3 |
Counted from PrepWiser's question bank of JEE Main papers, 2020–2026. Per shift = questions that year ÷ shifts in our bank. Updated .
Two free sheets, made from the past JEE Main questions on this chapter.
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| Year | Asked | In PDF | |
|---|---|---|---|
| 2026 | 5 | 5 | |
| 2025 | 3 | 3 | |
| 2024 | 11 | 11 | |
| 2023 | 7 | 7 | |
| 2022 | 11 | 11 | |
| 2021 | 10 | 10 | |
| 2020 | 7 | 7 |
How many Centre of Mass & Linear Momentum questions each topic had in every JEE Main year (all shifts), counting every question asked, including ones not in the PDF. Darker cells mean more questions.
| Topic | Asked | Share | 2026 | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 |
|---|---|---|---|---|---|---|---|---|---|
| Centre of Mass | 25 | 46% | 5 | 3 | 3 | · | 5 | 3 | 6 |
| Conservation of Linear Momentum | 14 | 26% | · | · | 6 | 2 | 2 | 4 | · |
| Impulse-Momentum Theorem | 12 | 22% | · | · | 2 | 5 | 3 | 2 | · |
| Rocket Propulsion | 3 | 6% | · | · | · | · | 1 | 1 | 1 |
| All topics | 54 | 100% | 5 | 3 | 11 | 7 | 11 | 10 | 7 |
Swipe the table sideways for older years.
All 5 JEE Main 2026 Centre of Mass & Linear Momentum questions in the free PDF, latest shift first.
JEE Main 2026 · 6 Apr · Shift 2 · Centre of Mass
Two identical bodies A and B of equal masses have initial velocities and respectively. The body A has acceleration while the acceleration of the other body B is zero. The centre of mass of the two bodies moves in path.
JEE Main 2026 · 6 Apr · Shift 1 · Centre of Mass
The position of center of mass of three masses and 15 kg placed with respect to mid point of normal bisector, as shown in the figure is .
JEE Main 2026 · 2 Apr · Shift 2 · Centre of Mass
Two blocks of masses 2 kg and 1 kg respectively, are tied to the ends of a string which passes over a light frictionless pulley as shown in the figure below. The masses are held at rest at the same horizontal level and then released. The distance traversed by the centre of mass in 2 s is _______ m. (Take )
JEE Main 2026 · 23 Jan · Shift 2 · Centre of Mass
A body of mass 14 kg initially at rest explodes and breaks into three fragments of masses in the ratio . The two pieces of equal masses fly off perpendicular to each other with a speed of each. The velocity of the heavier fragment is
.
JEE Main 2026 · 22 Jan · Shift 2 · Centre of Mass
Given below are two statements :
Statement I : For a mechanical system of many particles total kinetic energy is the sum of kinetic energies of all the particles.
Statement II : The total kinetic energy can be the sum of kinetic energy of the center of mass w.r.t to the origin and the kinetic energy of all the particles w.r.t. the center of mass as the reference.
In the light of the above statements, choose the correct answer from the options given below :
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JEE Main 2024 · 9 Apr · Shift 2 · Conservation of Linear Momentum
A nucleus at rest disintegrates into two smaller nuclei with their masses in the ratio of . After disintegration they will move :
Answer: (A)
JEE Main 2024 · 1 Feb · Shift 2 · Impulse-Momentum Theorem
Answer: (A)
JEE Main 2022 · 28 Jul · Shift 1 · Rocket Propulsion
A balloon has mass of in air. The air escapes from the balloon at a uniform rate with velocity . If the balloon shrinks in completely. Then, the average force acting on that balloon will be (in dyne).
Answer: (B)
The free PDF above has all 54 questions grouped by topic, with an answer key.
Answer Centre of Mass & Linear Momentum PYQs in the browser, get each one checked instantly and open the step-by-step solution where there is one.
Practise Centre of Mass & Linear Momentum online54 questions from 2020 to 2026, about 7.7 per year. In 2026 it had 5.
By past papers: Centre of Mass (46%), Conservation of Linear Momentum (26%) and Impulse-Momentum Theorem (22%) of all Centre of Mass & Linear Momentum questions.
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JEE Main PYQs by year: 2026 · 2025 · 2024 · 2023 · 2022 · 2021 · 2020
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