Physics-Equilibrium of Forces

NEET Physics Equilibrium of Forces MCQ Question

Type: MCQ-diagram based-Hard-Class 11

Consider a particle in equilibrium under three concurrent forces represented by a triangle in a diagram. If F1F_1 and F2F_2 are two forces forming the sides of the triangle, which statement correctly describes the third force F3F_3?

Question diagram
A

F3F_3 must be equal and opposite to the resultant of F1F_1 and F2F_2.

B

F3F_3 must have the same direction as F1F_1 and F2F_2.

C

F3F_3 must be perpendicular to both F1F_1 and F2F_2.

D

F3F_3 must be twice the magnitude of the resultant of F1F_1 and F2F_2.

Correct Answer

Option A

Detailed Explanation

For equilibrium of three concurrent forces, the vector sum must be zero, meaning F3F_3 is equal and opposite to the resultant of F1F_1 and F2F_2 as described in the context.

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