Question

can the resultant of three coplanar vectors be zero and why?​

Answer 1

yes, if three vector start from point O and ent at point O so according to polygon law of vector addition resultent is shown by closing side of polygon which is zero in this case it has zero resultant

Answer 2

Answer: yes

Explanation:

If they start from same point where they end

so according to the triangle law of vector addition resultant is zero