Question

Minimum number of vectors of unequal magnitudes which can give zero resultant are ---------.

Answer 1

Explanation:

Three minimum vector are give zero resultant.

you.

Answer 2

Three/3

Two unequal (in magnitude) cannot give a zero resultant vector because only an opposite vector of same magnitude can nullify a non-zero vector.

However three unequal vectors (in magnitude) will give a zero vector as resultant if they form a triangle as shown in the figure.

∴ u1+v1+v2 =0