The resultant of $\vec A$ and $\vec B$ makes an angle $\alpha $ with $\vec A$ and $\beta $ with $\vec B$,
$\alpha < \beta $
$\alpha < \beta $ if $A < B$
$\alpha < \beta $ if $A > B$
$\alpha < \beta $ if $A = B$
The maximum and minimum magnitude of the resultant of two given vectors are $17 $ units and $7$ unit respectively. If these two vectors are at right angles to each other, the magnitude of their resultant is
A person goes $10\, km$ north and $20\, km$ east. What will be displacement from initial point........$km$
Three girls skating on a circular ice ground of radius $200 \;m$ start from a point $P$ on the edge of the ground and reach a point $Q$ diametrically opposite to $P$ following different paths as shown in Figure. What is the magnitude of the displacement vector for each ? For which girl is this equal to the actual length of path skate ?
If $\vec{P}+\vec{Q}=\vec{P}-\vec{Q}$, then