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4 years ago

14

A dragster in a race accelerated from stop to 60 m/s by the time it reached the finish line. The dragster moved in a straight li

ne and traveled from the starting line to the finish line at 8.0 m/s2. How long did it take the dragster?

1 answer:

Aleks [24]4 years ago

7 0

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

<u><em>t = 7.5 seconds</em></u>

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