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Re: Name that force



Huh?

Use a cart with no front wall, infinitely thin bottom and the wheels,
etc. well under the floor.

bc

Hugh Haskell wrote:

At 9:37 -0500 10/28/03, Chuck Britton wrote:


The force is the impact of each raindrop that hits the BACK wall of
the car or the FRONT of the FRONT wall of the car.



So does that mean that the rain that hits the outside of the front
wall of the car contributes to its change of speed, even though it
doesn't contribute to its final mass (since it mostly runs off the
side onto the ground). If this is true then just calculating the
change due to the increased mass and conservation of the momentum of
that new mass would not account for all of the change in the speed of
the car, right?

On the other hand this implies that that part of the falling rain
that does not come in contact with either the front or the rear wall
of the car doesn't contribute to the final speed of the car. So how
do the two countering effects work out?

Hugh
--

Hugh Haskell
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<mailto:hhaskell@mindspring.com>

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