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

Question

xenn [34]

3 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?

Physics

1 answer:

Aleks [24] · Answer 1 · 2022-02-16T14:36:28+03:00

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>