NEET2020Physics-Mechanics
NEET 2020 Physics Torque MCQ Question
Type: MCQ-numerical-Medium-Class 11
Find the torque about the origin when a force of 3𝐣̂ N acts on a particle whose position vector is 2𝐤̂ m.
A
−6𝐢̂ N m
B
6𝐢̂ N m
C
6𝐣̂ N m
D
6𝐤̂ N m
Correct Answer
Option A
Detailed Explanation
Torque is given by the cross product of the position vector and the force vector. The cross product of 2𝐤̂ and 3𝐣̂ results in −6𝐢̂ N m.
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