I think the friction will act towards left as force is towards right.If not plz explain.Thanks

Dear student,
the force of friction always acts in the opposite direction of relative motion.
the motion of the block against the surface of wall will be along downward, due to weight of the block. Though their is a force acting towards right (along b ), there will be no motion due to this force along right.
so the only direction of feasible motion is along downward(along d), due to mg. So, the frictional force will generate in between block and surface to resist this force, then the direction of frictional force is along upward direction, i.e. along c.​​​​


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