JEE — Torque DirectionMediumQuestion 30359
Question
A force F = 3î N acts at position r = 2ĵ m. The torque is:
- A6k̂ N·m
- B−6k̂ N·mCorrect
- C6î N·m
- D0
Correct answer
−6k̂ N·m
Explanation
τ = r × F = (2ĵ) × (3î) = 6(ĵ × î) = 6(−k̂) = −6k̂ N·m.
JEE Physics · Medium
Rigid Body Dynamics: JEE — Torque Direction MCQ
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