Question

Vectors
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Q. Suppose the angle between vectors A and B is 0 degree, the magnitude of the resultant vector is maximum. Why?

Answer 1

If the angle between the two is zero degrees, then it means that both vectors are parallel. This means that following the "head to tail" rule of vector addition, then the resultant vector will equal the straight addition of the two.

Answer 2

think of it this way if two people are pulling an object and they are pulling 0 degrees apart, they are working together to pull the object so the magnitude is maximum