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A kicking football is essentially a brand new football that is fresh out of the package. A throwing football is a "broken in" ball that is more used and easier to handle.
Im pretty sure they were throwing before they were running throwing has always been a technique in football but both ways of the game have new plays and new ways of throwing and running the balll.
No you can not score from a throw in.
Tricept
A pro football because the quarterback is used to throwing the pro football and not a Nerf football.
by throwing a ball and scoring a touchdown
28 hours
yes
Shoulder muscles are used when throwing a football. They give the arm support and are needed during the actual throw. In the throwing motion the triceps and biceps are used. The core muscles are used to help the thrower stay balanced.
The laces on a football are vital for the throwing form and accuracy of a quarterback. If gripped correctly, they allow the QB to maintain a consistent form which is vital to throwing accurately downfield.
no they don't have to on the floor
when it crosses the boundry, even if its in the air