(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

THe driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with acceleration 5.10m/s^2 for 4.40s, making straight skid marks 64.6 m long ending at the tree. With what speed does the car then strike the tree?

2. Relevant equations

vxf=vxi+axt

d=(vi+vf/2)t

3. The attempt at a solution

a=5.10m/s^2

t=4.40s

- - - - -

a=5.10m/s^2

_________________________________

vi=0 4.40s

d=64.6m

d=(vi+vf/2)t

64.6m=(om/s+vf/2)4.40

Then I would solve for vf, right?

Thank you very much

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# Homework Help: With what speed does the car then strike the tree?

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