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Friday, 9 October

NEET UG 2017 · Physics · Question 40

NEET 2017 Physics, question 40

Question 40 of the NEET 2017 paper (code A) is a Physics question from Motion in a Straight Line. Its idea, Relative Velocity 1D, was asked twice, in 2017 and 2025, across NEET 2017–2026. The CBSE official answer key gives option 3.

Updated 2026-10-08

Q40 · Physics

Preeti reached the metro station and found that the escalator was not working. She walked up the stationary escalator in time t1t_1. On other days, if she remains stationary on the moving escalator, then the escalator takes her up in time t2t_2. The time taken by her to walk up on the moving escalator will be :

  1. 1t1+t22\frac{t_1+t_2}{2}
  2. 2t1t2t2−t1\frac{t_1 t_2}{t_2-t_1}
  3. 3t1t2t2+t1\frac{t_1 t_2}{t_2+t_1}Official answer
  4. 4t1−t2t_1-t_2

Official answer: option 3 · CBSE official answer key

Same idea

Relative Velocity 1D, in other papers

NEET asked this idea twice, in 2017 and 2025. The other question below.

  • 2025 Q21Two cities X and Y are connected by a regular bus service with a bus leaving in either direction every T min. A girl is driving scooty…Numerical · Medium

Relative Velocity 1D: 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