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## Homework Statement

http://www.webassign.net/CJ/3-45alt.gif ... (y = 0.46 m, and x = 6.6 m.)

From the top of a tall building, a gun is fired. The bullet leaves the gun at a speed of 340 m/s, parallel to the ground. As the drawing shows, the bullet puts a hole in a window of another building and hits the wall that faces the window. (y = 0.46 m, and x = 6.6 m.) Using the data in the drawing, determine the distances D and H, which locate the point where the gun was fired. Assume that the bullet does not slow down as it passes through the window.

## Homework Equations

The basic equations for projectile motion:

Dx = v0x(t) + .5at^2

Dy = v0y(t) + .5gt^2

vx = v0x + at

vy = v0y +gt

vx^2 = v0x^2 + 2aDx

vy^2 = v0y^2 + 2gDy or as I like to call it 2gAy (for memorization purposes)

the D in these equations stand for distance

## The Attempt at a Solution

My teacher did not explain this problem to us in class. I have no idea how to approach this problem.

*thanks for your response. I will try to solve this tomorrow and let you know if I have any problems then. Off to bed!

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