- #1
warfreak131
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Homework Statement
A little while ago I made a thread about the drop of a bullet due to gravity on a bullet with a constant velocity. Constant velocity is unrealistic, so I am going for a little more realism here.
I am doing this assuming that I have detailed information about distance traveled as a function of time (represented by x(t) ).
The distance an object with 0 initial vertical velocity fall is
[tex]
d_{drop}=\frac{1}{2}gt^{2}
[/tex].
And a rough estimate for x(t) could be [tex]\sqrt{t}[/tex], and velocity v(t) would be [tex]\frac{1}{2\sqrt{t}}[/tex].
Now that first equation requires some argument for time. Right now I have:
[tex]x(t)=\sqrt{t}[/tex]
and
[tex]v(t)=\frac{1}{2\sqrt{t}}[/tex].
So would I use the value of x(t) or v(t) in either of the last two equations, and rearrange to solve for t, and solve from there?
[tex]x(t)=\sqrt{t}{\rightarrow}x^{2}(t)=t[/tex]
[tex]v(t)=\frac{1}{2\sqrt{t}}{\rightarrow}\frac{1}{4v^{2}(t)}=t[/tex]
Thus making the equation
[tex]
d_{drop}=\frac{1}{2}g{\cdot}x^{4}(t)
[/tex]
and
[tex]
d_{drop}=\frac{1}{2}g{\cdot}\frac{1}{16v^{4}(t)}
[/tex]
Is any of this incorrect?