Adragster in a race accelerated from stop to 60 m/s by the time it reached the finish line. the dragster moved in a straight line and traveled from the starting line to the finish line at 8.0 m/s2. how long did it take the dragster?

Vf = final velocity
vo = initial velocity
a = acceleration
t = time

use the following equation

vf = vo + at

since vo = 0 m/s (stopped), that term drops out and you're left with . . .

vf = at

(60 m/s) = (8.0 m/s²)t

t = (60 m/s)/(8.0 m/s²) = 7.5 seconds

t = 7.5 seconds

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