A Wizard uses the spell Catapult (EEPC, p. 15-16; XGtE, p. 150) against a Scarecrow (MM, pg. 268).
Catapult flings an object that is not worn or carried toward a scarecrow and hits.
The scarecrow has damage resistance to bludgeoning, piercing, and slashing from nonmagical weapons.
Does Catapult do full damage, or reduced damage in this scenario?