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Friday, 9 October

NEET UG 2018 · Physics · Question 36

NEET 2018 Physics, question 36

Question 36 of the NEET 2018 paper (code AA) is a Physics question from System of Particles and Rotational Motion. Its idea, Torque as a Cross Product, was asked twice, in 2018 and 2020, across NEET 2017–2026. The CBSE official answer key gives option 4.

Updated 2026-10-08

Q36 · Physics

The moment of the force, F⃗=4i^+5j^−6k^\vec{F} = 4\hat{i} + 5\hat{j} - 6\hat{k} at (2, 0, – 3), about the point (2, – 2, – 2), is given by

  1. 1−7i^−8j^−4k^-7\hat{i} - 8\hat{j} - 4\hat{k}
  2. 2−4i^−j^−8k^-4\hat{i} - \hat{j} - 8\hat{k}
  3. 3−8i^−4j^−7k^-8\hat{i} - 4\hat{j} - 7\hat{k}
  4. 4−7i^−4j^−8k^-7\hat{i} - 4\hat{j} - 8\hat{k}Official answer

Official answer: option 4 · CBSE official answer key

Same idea

Torque as a Cross Product, in other papers

NEET asked this idea twice, in 2018 and 2020. The other question below.

  • 2020 Q149Find the torque about the origin when a force of 3j^3\hat{j} N acts on a particle whose position vector is 2k^2\hat{k} m.Numerical · Easy

Torque as a Cross Product: every question and how it was framed

The chapter

System of Particles and Rotational Motion in ten years of NEET

25 questions from 2017–2026, asked in 10 of 10 papers, about 2.4 a paper. Rotational Motion alone had 21.

Chapter analysisStudy this chapterPractise this chapter

System of Particles and Rotational Motion: questions per paper

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