# In which direction does static friction acts on the spool when a force is given to it below centre of mass?

Here, we are provided with a spoolhaving moment of inertia I=kmr², where k is a numerical factor.

I am in the confusion that how should we judge in which direction static friction would be applied,

I asked my teachers they told me that to use practical sense and said that since F is providing an anticlocwise torque friction must provide an clockwise torque

but I think this is not a valid justication as, in few cases friction acts in the same circular direction as of force

for example:- force applied at sphere at a distance of less than 2/5r from centre of massa

Edit: The summary of the linked answer is that for any body, the net velocity of the bottommost point is towards the left relative to the ground, so friction always acts forward. In case of a ring ($$I = MR^2$$), if the force is applied at a distance $$R$$ above the center, the relative velocity of that point is zero, so no friction is needed.