The direction of a vector is defined in terms of its components along a set of orthogonal vectors (the coordinate axes).
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Yes, a vector can be represented in terms of a unit vector which is in the same direction as the vector. it will be the unit vector in the direction of the vector times the magnitude of the vector.
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If a quantity does not have a direction, its a scalar quantity, not a vector quantity.
A vector is a qunatity having a magnitude and direction.
A quantity involving direction and magnitude is called physically vector A quantity involving direction and magnitude is called physically vector