- #1

burton95

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## Homework Statement

A dragster starts from rest and travels 0.25 miles in 6.7 s. Assuming that the acceleration is constant, what is its speed (in miles per hour) at this point?

Δt= 6.7 s

Δx= .25 miles

## Homework Equations

Constant acceleration equationsv = vo + at

x = xo + vo t + ½ a t2

xo + ½ (v + vo) t

2 a (x - xo)= v2 - vo2

## The Attempt at a Solution

all of the relevant constant acceleration equations I have in front of me have too many variables to isolate one given this. I know I can figure V

_{avg}.25/0.00186111 hrs (6.7 s.) = 134.3284 but this doesn't do me any good. If you could nudge me in the right direction I would appreciate it.