Last night i got hit on the left fender, it sounded really bad but it wasnt only some minor scratches on the wheel and fender. When i went to turn on the car today it wont start. I checked al the fuses and all of them are ok. My das is completely blank and no lights go on when i put the key in the ignition, so im thinking is something with the battery but the fuse is good and ckeched to see if any cables were loose. I need help on finding the solution to this problem?

Thanks in advanced