<PRE><B>Question 296143</B>
The weight itself shouldn&#39;t be a factor.

The &lt;i&gt;academic&lt;/i&gt; answer would be 7 * 24 = 168 miles. &lt;br&gt;
Having said that, that would be under ideal conditions.
Realistically speaking there are a &lt;b&gt;vast&lt;/b&gt; number of variables to consider.
First, it&#39;s not likely that any stream or river is going to run at a constant 7 mph for that distance. It will slow as the stream widens and speed up as it narrows.&lt;br&gt;
Is it in a coastal area where a part of the journey could be affected by tide?&lt;br&gt;
Next was the body totally submerged, or was it floating in such a manner that wind and/or waves would have affected it? I think that wind and tide are the only natural forces that could make it go farther than the calculated 168 miles.&lt;br&gt;
Last, and most certainly not of least importance: &lt;b&gt;if&lt;/b&gt; the body drug along the ground, got caught in debris, rocks or an eddy, those things would all slow it&#39;s progress.&lt;br&gt;
Knowing no more than I do about the conditions, if someone held a gun to my head &amp; &lt;b&gt;forced&lt;/b&gt; me to bet, I&#39;d say that the body entered the water &lt;i&gt;considerably&lt;/i&gt; closer than the 168 mile point.
I really don&#39;t know if I&#39;ve helped you very much, but I &lt;i&gt;hope&lt;/i&gt; I did.</PRE>