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Yes, they certainly can.

Simplest example:

(10 pounds north) + (4 pounds south) + (6 pounds south) = Zero.

But any number of non-zero vectors, more than one, can add up to zero

if they have the right magnitudes and directions.

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Q: Can 3 unequal vectors add up to give the zero vector?
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Can two vectors of unequal magnitude add up to give the zero vector?

No. The vector resultant of addition of vectors is the vector that would connect the tail of the first vector to the head of the last. For any set of vectors to add to the zero vector, the endpoint of the last vector added must be coincident with the start point of the first. Therefore for the sum of only two vectors to have a chance of being the zero vector, the second vector must be in a direction exactly opposite the first. So you can tell that the result of adding the two vectors could only can be zero vector if the two vectors were of two equal magnitude.


Can the sum of two vectors of unequal magnitudes be a zero vector?

The sum of two unequal vectors can not be zero, because we can get minimum magnitude of two vectors when they are in opposite direction and can only get zero magnitude when they are equal in magnitude.................................... Answered by: SAJJAD AHMED(bfps doha Qatar)


Is it possible two unequal vector to give a zero resultant?

The only way that two vectors add up to zero is if they have equal magnitude and opposite direction. If the magnitudes are not equal then no, they cannot give a zero resultant.


Is it possible to combine two unequal vectors to give a zero resultant?

No.


If two vectors have unequal magnitudes can their sum be zero?

Well, honey, if two vectors have unequal magnitudes, their sum can't be zero unless they're pointing in completely opposite directions. In that case, the larger vector would just cancel out the smaller one to give a net sum of zero. So, technically yes, but don't count on it happening often.