Question $2$

The turn$-$table shown above is rotating around the $\backslash ($ z $\backslash )$ axis, the hinge attached to it is rotating around the $\backslash (-$y $\backslash )$ axis, and the link attached to the hinge is extending along the $\backslash ($ x $\backslash )$ axis. In what directions are the components of $\backslash (\backslash$vec$\{$v$\}\_\{$B$\}\backslash )?$

$+$z

$-$y

$-$x

$+$y

$+$x

$-$z

Question $3$

The turn$-$table shown above is rotating around the $\backslash ($ x $\backslash )$ axis, the hinge attached to it is rotating around the $\backslash (-$y $\backslash )$ axis, and the link attached to the hinge is extending along the $\backslash ($ z $\backslash )$ axis. In what directions are the components of $\backslash (\backslash$vec$\{$v$\}\_\{$B$\}\backslash )?$

$-$y

$-$x

$\backslash (+$x $\backslash )$

$+$z

$\backslash (+$y $\backslash )$

$-$z