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Friday, 9 October

NEET UG 2025 · Physics · Question 15

NEET 2025 Physics, question 15

Question 15 of the NEET 2025 paper (code 45) is a Physics question from Motion in a Straight Line. Its idea, Acceleration as v(dv/dx), was asked only this once in NEET 2017–2026. The NTA final answer key gives option 2.

Updated 2026-10-08

Q15 · Physics

In some appropriate units, time (tt) and position (xx) relation of a moving particle is given by t=x2+xt = x^2 + x. The acceleration of the particle is

  1. 1−2(x+2)3-\frac{2}{(x+2)^3}
  2. 2−2(2x+1)3-\frac{2}{(2x+1)^3}Official answer
  3. 3+2(x+1)3+\frac{2}{(x+1)^3}
  4. 4+22x+1+\frac{2}{2x+1}

Official answer: option 2 · NTA final answer key

Same idea

The only question on Acceleration as v(dv/dx)

No other NEET paper from 2017–2026 tested this exact idea.

Acceleration as v(dv/dx): every question and how it was framed

The chapter

Motion in a Straight Line in ten years of NEET

13 questions from 2017–2026, asked in 9 of 10 papers, about 1.2 a paper. Kinematics in 1D alone had 13.

Chapter analysisStudy this chapterPractise this chapter

Motion in a Straight Line: questions per paper

0241’171’180’191’201’212’223’231’242’251’26