A football quarterback runs 13 m straight down the playing field in 2.2 s (in the positive direction). He is then hit and pushed 2.5 m straight backwards in 1.8 s. He breaks the tackle and runs straight forward another 23 m in 4.8 s. show answer No Attempt 25% Part (a) Calculate the quarterback's average velocity in the horizontal direction during the first interval, in meters per second.