The change in a vector may occur due to .....
Rotation of frame of reference
Translation of frame of reference
Rotation of vector
Both $(a)$ and $(c)$
If $\overrightarrow A = 2\hat i + 4\hat j - 5\hat k$ the direction of cosines of the vector $\overrightarrow A $ are
How can we represent vector quantity ?
The unit vector along $\hat i + \hat j$ is
How the magnitude of vector quantity is represented ?
A vector is represented by $3\,\hat i + \hat j + 2\,\hat k$. Its length in $XY$ plane is