NEET UG · Physics · Work, Energy and Power

Power and Collisions: NEET previous year questions

4 questions in ten years of NEET, in 4 of 10 papers. Pattern: Most years. Here is how it is asked and which ideas come back.

Asked in 10 years: 4; about 0.4 per paper
Years asked: 4/10; last asked 2026
Chance of a question next paper: 50%; historical rate, how we compute it
Weighted estimate: 0.4; model; history: 0.4 a paper on average, typically 0–1

Key findings

01
Asked in 4 of 10 papers, 4 questions in all: #163 of 204 topics by ten-year total. It comes back every 2.7 years on average.
02
100% of its questions since 2018 tested an idea never asked before; none repeated an idea from the year before.
03
No idea in this topic has been asked twice: every question tested something new.
04
NEET has asked 4 of the 92 ideas in this topic; 87 have never been asked, directly or indirectly.
05
Mostly asked as numerical (100%); 25% easy, 0% hard, and up from 0.3 to 0.6 questions a paper since 2024.

Questions per year

Up to 2023: 0.3; per paper
Since 2024: 0.6; +0.4
Usual gap: 2.7 yrs; between papers asking it
Swing: ±0.5; questions, year to year

How it is asked

Difficulty, format and skill

Across all 4 questions on Power and Collisions since 2017.

Difficulty

QUESTIONS

Easy1 · 25%
Medium3 · 75%
Hard0 · 0%

Format

Numerical · 4 Q100%

Skill tested

Calculation · 3 Q75%
Multi-step · 1 Q25%

Repeats

New idea, or one asked before?

Each column is a paper. Blue questions tested an idea NEET had not asked before; navy ones went back to an idea from an earlier paper. 2017 is the first paper, so everything in it counts as new.

’17’18’19’20’21’22’23’24’25’26

Idea asked for the first time
Idea asked in an earlier paper

Coverage of the topic

NEET has asked 4 of the 92 ideas in this topic. 87 have never been asked yet.

Asked directly4 · 4%
Touched inside another question1 · 1%
Never asked87 · 95%

Ideas come from Lumi’s syllabus map of NCERT. A never-asked idea is not a safe skip: most new questions come from exactly these.

Drill down

Idea, year, question

Every idea NEET tested in this topic, with its ten papers. Open one to read the questions.

ideaAskedShareYears’17’18’19’20’21’22’23’24’25’26

1 · 25%25%1/10
- 2018 · Q32
  A moving block having mass m, collides with another stationary block having mass 4m. The lighter block comes to rest after collision. When…
  mediumNumericalNew idea
1 · 25%25%1/10
1 · 25%25%1/10
1 · 25%25%1/10

Squares are the ten papers, 2017 to 2026; darker means more questions. Share is of the level above.

Ideas

Every idea inside this topic

4 different ideas were tested; none came more than once. Elastic Collisions in 1D is the foundation for 20 other ideas in the syllabus.

Velocity Exchange in Equal Mass Collisions1×
numerical
Numerical · 6% next
Inelastic Collisions1×
numerical
Numerical · 6% next · foundation for 7
Elastic Collisions in 1D1×
numerical
Numerical · 4% next · foundation for 20
Coefficient of Restitution1×
numerical
Numerical · 4% next · foundation for 10

Idea	Times	Format	Chance next	Foundation for
Velocity Exchange in Equal Mass Collisionsnumerical	1	NumericalMulti-step	6%	–
Inelastic Collisionsnumerical	1	NumericalCalculation	6%	7 ideas
Elastic Collisions in 1Dnumerical	1	NumericalCalculation	4%	20 ideas
Coefficient of Restitutionnumerical	1	NumericalCalculation	4%	10 ideas

Chance next is the historical rate at which an idea with this record came back in the following paper. It is low for every idea, which is why learning the topic beats memorising past questions. All repeated ideas

Every question

Power and Collisions questions, year by year

The opening words of each question as it appeared in the official paper, with the idea it tested.

NEET 20261 question

Q44
Bob B of mass m at rest is hanging vertically from the ceiling via a massless string of length 10 m, as shown in the figure. Point mass A…
Idea: Velocity Exchange in Equal Mass Collisions
New ideaMediumNumerical · figure

NEET 20241 question

Q8
Two bodies A and B of same mass undergo completely inelastic one dimensional collision. The body A moves with velocity $v_1$ while body B…
Idea: Inelastic Collisions
New ideaEasyNumerical

NEET 20191 question

Q4
Body A of mass 4m moving with speed u collides with another body B of mass 2m, at rest. The collision is head on and elastic in nature.…
Idea: Elastic Collisions in 1D
New ideaMediumNumerical

NEET 20181 question

Q32
A moving block having mass m, collides with another stationary block having mass 4m. The lighter block comes to rest after collision. When…
Idea: Coefficient of Restitution
New ideaMediumNumerical

Questions from the official NEET UG papers published by NTA (CBSE before 2019). Topic and idea tags, counts and notes are Lumi’s.