Question

With respect to vector quantities, which of the following is not correct?

• A. Vectors cannot be added.
• B. Vectors have magnitude as well as direction.
• C. Velocity is a vector quantity.
• D. The magnitude of a vector is represented by its length.

Answer 1

The correct option is A Vectors cannot be added.

Physical quantities which have both magnitude and direction are called vectors. e.g. force, velocity, displacement etc.

The magnitude of a vector is represented by its length. Vectors can be added. e.g. two forces of 2 N each acting in the same direction add up to 4 N along the same direction.