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## Homework Statement

Julia is delivering newspapers. Suppose she is driving at 15 m/s along a straight road and wants to drop a paper out the window from a height of 1.00m so it slides along the shoulder and comes to rest in the customer's driveway. At what horizontal distance before the driveway should she drop the paper? The coefficient of kinetic friction between the newspaper and the ground is 0.40. Ignore air resistance and assume no bouncing and rolling.

## Homework Equations

delta y = Viy* delta t + 1/2 ay* delta t^2

delta x= Vix * detal t

## The Attempt at a Solution

delta y = Viy* delta t + 1/2 ay* delta t^2

-1m=0 + 1/2(-9.8m/s^2)*delta t^2

==> delta t = sq. root of (-2* -1m/-9.8m/s^2) = 0.45s

delta x= Vix * detal t=15m/s * 0.45s = 6.78m

I am not sure what to do with the coefficient of kinetic friction between the newspaper and the ground? Please help! Or is it a trick to throw me off... the answer is just simply 6.78 m?