AIPMT PRELIMS2012Physics-Rotational Motion
AIPMT PRELIMS 2012 Physics Torque MCQ Question
Type: MCQ-conceptual-Medium-Class 11
ABC is an equilateral triangle with O as its centre. F̅₁, F̅₂ and F̅₃ represent three forces acting along the sides AB, BC and AC respectively. If the total torque about O is zero then the magnitude of F̅₃ is
A
2(F₁ + F₂)
B
F₁ + F₂
C
F₁ - F₂
D
F₁ + F₂/2
Correct Answer
Option B
Detailed Explanation
For zero torque, the sum of torques due to F̅₁, F̅₂, and F̅₃ must be zero. This implies F₃ = F₁ + F₂.
Found an issue with this question?