It means that the direction of the vector is that same as before but the magnitude has been changed - by a scalar factor.
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NULL VECTOR::::null vector is avector of zero magnitude and arbitrary direction the sum of a vector and its negative vector is a null vector...
It is a vector whose magnitude is 1.It is a vector whose magnitude is 1.It is a vector whose magnitude is 1.It is a vector whose magnitude is 1.
prrpendicular projections of a vector called component of vector
the opposite to vector addition is vector subtraction.
The unit vector is a vector whose magnitude is 1.