A vector is added to an equal and opposite vector of similar nature, forms a ........
Unit vector
Position vector
Null vector
Displacement vector
Find the unit vector of a vector whose co-ordinates are $(8,\, 6)$.
Angular momentum is
When three forces of $50 \,N, 30\, N $ and $15\,N$ act on a body, then the body is
Which of the following is a vector
If a unit vector is represented by $0.5\hat i + 0.8\hat j + c\hat k$, then the value of ‘$c$’ is