Explain (i) Unit vector (ii) Equal vectors (iii) Negative vectors, (iv) Coinitial v ectors (v) Collinear vectors and (vi) Copanar vectors.

Collinear and coplanar vectors

Define (i) unit vector (ii) null vector (iii) cross product of two vectors vec A and vec B .

Equal vectors; null vector; unit vectors; position vector; like and unlike vectors; collinear and parallel vectors

Two vectors , having same magnitude but opposite direction are called (a) equal vectors (b) negative vectors (c) unit vectors (d) null vectors

The vector (hat i +hat j) is a unit vector.

Express the vector in unit - vector notation.

A vector coplanar with the non-collinear vectors bara and bar b is

Explain vectors addition when vectors are in terms of rectangular component vectors.

In Figure,which of the vectors are: (i) Collinear (ii) Equal (iii) Coinitial

Co-initial vectors; coterminous vector and co- planar vectors; negative of a vector; reciprocal vectors