When they are equal in magnitude but opposite in direction.
When the angle between two vectors is zero ... i.e. the vectors are parallel ... their sum is a vector in thesame direction, and with magnitude equal to the sum of the magnitudes of the two original vectors.
Two is the minimum number of vectors that will sum to zero.
They need equal magnitudes and opposite directions.
In order for two vectors to add up to zero:-- their directions must be exactly opposite-- their magnitudes must be exactly equal
Their sum can be zero only if their magnitudes are equal and their directions are exactly opposite.
When the angle between two vectors is zero ... i.e. the vectors are parallel ... their sum is a vector in thesame direction, and with magnitude equal to the sum of the magnitudes of the two original vectors.
Two is the minimum number of vectors that will sum to zero.
They need equal magnitudes and opposite directions.
-- A singe vector with a magnitude of zero produces a zero resultant.-- Two vectors with equal magnitudes and opposite directions produce a zero resultant.
0=v1+v2 means the magnitudes are zero or equal and opposite.
Their magnitudes are exactly equal, and their directions are exactly opposite.
only if the vectors have the same direction
Two vectors with unequal magnitudes can't add to zero, but three or more can.
In order for two vectors to add up to zero:-- their directions must be exactly opposite-- their magnitudes must be exactly equal
Their sum can be zero only if their magnitudes are equal and their directions are exactly opposite.
They are vectors of equal magnitudes in oppositedirections. When you add them, they cancel out each other.
It is certain that two vectors of different magnitudes cannot yield a zero resultant force.