Three concurrent forces of the same magnitude are in equilibrium.… - Vidyadip

MCQ

Three concurrent forces of the same magnitude are in equilibrium. What is the angle between the forces ? Also name the triangle formed by the forces as sides

✓
$60^{\circ}$ equilateral triangle
B
$120^{\circ}$ equilateral triangle
C
$120^{\circ}, 30^{\circ}, 30^{\circ}$ an isosceles triangle
D
$120^{\circ}$ an obtuse angled triangle

✓

Answer

Correct option: A.

$60^{\circ}$ equilateral triangle

(a) In $N$ forces of equal magnitude works on a single point and their resultant is

zero then angle between any two forces is given$\theta=\frac{360}{N}=\frac{360}{3}=120^{\circ}$If these three vectors are represented by three sides of triangle then they form equilateral triangle

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