Question

part a
how does the lever arm change if you decrease the angle of the force?
view available hint(s)
hint 1. definition of lever arm
the lever arm is the length of the shortest line drawn from the nut to the extension of the force vector.
it stays the same.
it decreases.
it increases.

Explanation:

The lever - arm is related to the perpendicular distance from the pivot (nut here) to the line of action of the force. When the angle of the force with respect to the line connecting the pivot and the point of application of the force decreases, the perpendicular distance (lever - arm) decreases as well.

Answer:

It decreases.