Your part in this is to cooperate with other types of discipline (grounding, loss of privileges, etc). If hitting was so effective for influencing people's behavior, why wouldn't society use it on adults as well? You get a speeding ticket, and you get hit; you're late paying your taxes, you get hit. Sounds ridiculous, doesn't it? That's because it is, and by the time a person is your age, Rachel, being struck generates resentment and anger that is not productive.
I suggest you approach this issue with your mother respectfully and with love and understanding. Remember, she likely grew up being hit herself.