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Friday, 9 October

JEE Main 2026 · PhysicsMultiple choiceOtherMediumMulti-step

JEE Main 2 April 2026, Shift 1, Physics Q29

Question 29 of 75 in this shift, Physics question 4 of 25, Section A.

The position of an object having mass 0.10.1 kg as a function of time tt is given as r⃗=(10t2i^+5t3j^)\vec r=\left(10t^2\hat i+5t^3\hat j\right) m. At t=1t=1 s, which of the following statements are correct ? A. The linear momentum p⃗=(2i^+1.5j^)\vec p=\left(2\hat i+1.5\hat j\right) kg m/s. B. The force acting on the object F⃗=(2i^+3j^)\vec F=\left(2\hat i+3\hat j\right) N. C. The angular momentum of the object about its origin L⃗=15 k^\vec L=15\,\hat k J s. D. The torque acting on the object about its origin τ⃗=20 k^\vec\tau=20\,\hat k N m. Choose the correct answer from the options given below :
  1. (1)A, B and C only
  2. (2)B, C and D only
  3. (3)A, C and D only
  4. (4)A, B and D onlyOfficial answer

Official answer

Option 4

NTA final key.

Chapter
System of Particles and Rotational Motion
Topic
Angular Momentum
Idea tested
Angular Momentum of Particle

Same idea in other shifts

Asked 2× in all
  1. 25 Jul 2021, Shift 1 · Q25A particle of mass 'mm' is moving in time 'tt' on a trajectory given by r⃗=10αt2i^+5β(t−5)j^\vec{r}=10\alpha t^2\hat{i}+5\beta(t-5)\hat{j} Where α\alpha…MediumNumerical value

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.