A torque wrench grips a bolt at the origin of coordinates, with the free end of the torque wrench located at the point

$($r$0,0,0).$

The force on this end of the torque wrench points in the direction of

V $=$

$10,0,16$

$.$

Note that

r $=$

r$0,0,0$

in this problem. Compute the length of the lever arm

L

needed to produce a torque with magnitude $440$ ft$-$lb if the magnitude of the force is $110$ pounds.