does the 40 yard dash test speed or acceleration?

B

babbsr55

New member
i was wondering about this because when you run the 40 you are only running 40 yards so therefore most of the distance you are accelerating and when i run the 40 i reach top speed around 30 yards so does the 40 really test speed or acceleration and if it does tests acceleration and they wanna test speed do you think they should run 100 yards for speed and 40 yards for acceleration
 
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