Why are people who suffer from emphysema always short of breath?

One of the fastest recorded pitches in major-league baseball, thrown by tim lincecum in 2009, was clocked at 101.0 mi/h. if a pitch were thrown horizontally with this velocity, how far would the ball fall vertically by the time it reached home plate, 60.5 ft away?

67 ft/s express your answer to two significant figures and include the appropriate units. 12 in^2 express your answer to two significant figures and include the appropriate units. i dont really understand how to convert so if someone can explain id really appericate the .

The initial horizontal velocity of a projectile is blank it’s final horizontal velocity