A hot rod can accelerate from 0 to 60 km/h in 5.4 s.(adsbygoogle = window.adsbygoogle || []).push({});

(a) What is its average acceleration, in m/s2, during this time?

(b) How far will it travel during the 5.4 s, assuming its acceleration is constant?

(c) How much time would it require to go a distance of 0.32 km if its acceleration could be maintained at the value in (a)?

for a, first I did a unit conversion for the speed:

60(1000/3600)= 16.667m/s=v

a=delta v/ delta t

a=16.667/5.4=3.086m/s^2

for b:

d=V^2/2a

d=(16.667)^2/2(3.086)=45.006m

for c:

I converted .32km to 320m.

a=3.086m/s^2 since it is constant...but I don't know what equation to use to determine the time to travel the distance.

I tried the values 19.19 and 10.18, both were wrong.

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# Homework Help: Distance travel given constant a

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