Natural Science Forum / Physics / General Physics / July 2008

A non violation of conservation of energy fun.

There is a river flowing along and just before a boat dock
there is a water flow of 1,000,000 million gpm
1: ) How much energy is that?

At the boat dock, there is a 60 ton boat and it
starts it way down the river letting the water push it
along the river for 100 miles.
2:) How much energy is need to do that?

100 miles later the boat comes across another dock
and parks and used up energy (the answer for #2)
to do so.

After the second boat dock,
The water flow is measured and it is still
1,000,000 million gpm.
3:) Is that still the same amount of energy as answer #1?

4:) Is that a violation or not?
(yes or no.)

5:) Where did the energy come from?

For those that wonder, I do know the answer but
please , no explanations yet and only answers
if you want to participate.

This would be a fun classroom thing I think
to see what the students think.