well for your size i'd say a corner or a safety but if you want to go on offense then wide out is your best shot
RunningBack
Cheerleader.
Bench Warmer
Defensive tackle
fullback?
left out or right corner
If your fast: cornerback or wide receiver
cornerback or safety
Anyone you choose! - Most coaches would have you on the line
In 7th grade you would probably be an offensive or defensive lineman.
Punter or placekicker. No speed required.
A football weighs about 2.2 pounds