Well, there's a certain way to spank/hit a child. Aggressive abuse and just hitting the child is not the way you want to do it. Neither is giving the child a wimpy smack.
Here's how my dad used to do it.
Whenever i had to get spanked, he'd only do about 3-4 spanks with his belt while I laid down on my bed. In between spanks he'd tell me what I did wrong, why it was wrong, why I'm being punished, and that I'm not supposed to do it again. He'd then leave and I would come out of my room in 15 minutes. I was more fearful and apologetic then aggressive.