If $A = 3\hat i + 4\hat j$ and $B = 7\hat i + 24\hat j,$the vector having the same magnitude as $B$ and parallel to $A$ is
$5\hat i + 20\hat j$
$15\hat i + 10\hat j$
$20\hat i + 15\hat j$
$15\hat i + 20\hat j$
What is position vector ? What is displacement vector ? Explain equality of vectors.
What is vector ? How it can be represented ?
Which of the following is a scalar quantity
A particle is moving with speed $6\,m/s$ along the direction of $\vec A = 2\hat i + 2\hat j - \hat k,$ then its velocity is
$0.4\hat i + 0.8\hat j + c\hat k$ represents a unit vector when $c$ is