Question

Which of the following is not essential for three vectors to produce zero resultant?
(A) They should lie in the same plane.
(B) It should be possible to represent them by the three sides of a triangle taken in the same order.
(C) They should act along the sides of a parallelogram.
(D) The resultant of any two vectors should be equal and opposite to the third vector.​

Answer 1

Option C) is the answer

They are not necessary to act along the sides of a parallelogram, rest all options are necessary for the resultant of three vectors to be zero.

This is because if they'd be put like sides of parallelogram, they won't give zero.

Answer 2

Answer:

(C) they should act along the sides of a parallelogram

this will be the correct answer

hope it help