Laws of Motion- dropping book off building with a twist

1. The problem statement, all variables and given/known data
A 2.0kg physics book is dropped from the roof of a skyscraper 240.1 m high. While the book is falling to the ground, a horizontal wind exerts a constant force of 11 N on it. Ignore air resistance.

a. How far from the building is the book when it hits the ground?
b. How long does it take the book to hit the ground?
c. What is the speed of the book when it hits the ground?

2. Relevant equations
ax=force of the wind/m

3. The attempt at a solution
Using the second formula,

11N/2kg=5.5 m/s^2

I would like some advice as to what to do now.

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