Questions

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.

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a

600, equililateral triangle

b

1200, equilateral triangle

c

300, an isosceles triangle

d

1200, an obtuse angled triangle

detailed solution

Correct option is B

If the resultant of three concurrent coplaner forces is zero , then the force vectors must form a closed triangle and the sides represent the forces in the same order . If the forces are of equal magnitude then the triangle must be an equilateral triangle .So the angle between any two forces is 1200.

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