JEE Main 2026 · Session 2 · Shift 1 · Physics
Question 29
The position of an object having mass 0.1 kg as a function of time t is given as r⃗ = (10t²î + 5t³ĵ) m. At t = 1 s, which of the following statements are correct? A. The linear momentum p⃗ = (2î + 1.5ĵ) kg·m/s. B. The force acting on the object F⃗ = (2î + 3ĵ) N. C. The angular momentum of the object about its origin L⃗ = 15 k̂ J·s. D. The torque acting on the object about its origin τ⃗ = 20 k̂ N·m. Choose the correct answer from the options given below:
- A. A, B and C only
- B. B, C and D only
- C. A, C and D only
- D. A, B and D onlyCorrect answer
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Official source
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Question paper, page 11-12.