Bryan wrote:
"Dave" wrote ...
"Bryan" said:

If a sailboat leaves Miami at 5 knots per hour, how fast will it be
going when it reaches Panama?

Impossible to determine without knowing its starting speed.

Starting speed: 0 Knots.

Can you give an instance when this is _not_ the case? Every time I've
started a trip I've experienced a starting speed of roughly zero knots. give
or take.

--
Good luck and good sailing.
s/v Kerry Deare of Barnegat
http://home.comcast.net/~kerrydeare

Armond Perretta wrote:
Bryan wrote:

"Dave" wrote ...

"Bryan" said:

If a sailboat leaves Miami at 5 knots per hour, how fast will it be
going when it reaches Panama?

Impossible to determine without knowing its starting speed.

Starting speed: 0 Knots.


Can you give an instance when this is _not_ the case? Every time I've
started a trip I've experienced a starting speed of roughly zero knots. give
or take.


When you have to back out of the slip! -0.25 knots!

--
The email address above is a spam trap. Don't expect a response.
Reach me using firstname at lastname dot net

"Cindy Ballreich" wrote in message
...
Armond Perretta wrote:
Bryan wrote:

"Dave" wrote ...

"Bryan" said:

If a sailboat leaves Miami at 5 knots per hour, how fast will it be
going when it reaches Panama?

Impossible to determine without knowing its starting speed.

Starting speed: 0 Knots.


Can you give an instance when this is _not_ the case? Every time I've
started a trip I've experienced a starting speed of roughly zero knots.
give
or take.


When you have to back out of the slip! -0.25 knots!


No, no, no! Remember, there is a current running bow to stern, so backing
out of the slip will only reduce the forward velocity, again bringing us
back, possibly, to a starting velocity of zero.

Cindy Ballreich wrote:
Armond Perretta wrote:
Bryan wrote:
"Dave" wrote ...
"Bryan" said:

If a sailboat leaves Miami at 5 knots per hour, how fast will it
be going when it reaches Panama?

Impossible to determine without knowing its starting speed.

Starting speed: 0 Knots.

Can you give an instance when this is _not_ the case? Every time
I've started a trip I've experienced a starting speed of roughly
zero knots. give or take.

When you have to back out of the slip! -0.25 knots!

What was the vessel's velocity relative to the geodesic coordinate frame
when it _began_ moving in reverse?

--
Good luck and good sailing.
s/v Kerry Deare of Barnegat
http://home.comcast.net/~kerrydeare

"Armond Perretta" wrote in message
. ..
Cindy Ballreich wrote:
Armond Perretta wrote:
Bryan wrote:
"Dave" wrote ...
"Bryan" said:

If a sailboat leaves Miami at 5 knots per hour, how fast will it
be going when it reaches Panama?

Impossible to determine without knowing its starting speed.

Starting speed: 0 Knots.

Can you give an instance when this is _not_ the case? Every time
I've started a trip I've experienced a starting speed of roughly
zero knots. give or take.

When you have to back out of the slip! -0.25 knots!

What was the vessel's velocity relative to the geodesic coordinate frame
when it _began_ moving in reverse?


OK, I'm stumped. Isn't the geodesic coordinate frame that house designed by
buckminster fuller in the 60's or 70's?

"Armond Perretta" wrote in message
. ..
Bryan wrote:
"Dave" wrote ...
"Bryan" said:

If a sailboat leaves Miami at 5 knots per hour, how fast will it be
going when it reaches Panama?

Impossible to determine without knowing its starting speed.

Starting speed: 0 Knots.

Can you give an instance when this is _not_ the case? Every time I've
started a trip I've experienced a starting speed of roughly zero knots.
give
or take.

Let's see. Tied up at the slip with a current running bow to stern and the
knot meter reads something above zero knots. Does that count?

Bryan wrote:
"Armond Perretta" wrote ...
Bryan wrote:
"Dave" wrote ...
"Bryan" said:

If a sailboat leaves Miami at 5 knots per hour, how fast will it
be going when it reaches Panama?

Impossible to determine without knowing its starting speed.

Starting speed: 0 Knots.

Can you give an instance when this is _not_ the case? Every time
I've started a trip I've experienced a starting speed of roughly
zero knots. give
or take.

Let's see. Tied up at the slip with a current running bow to stern
and the knot meter reads something above zero knots. Does that count?

No. Velocity is measured relative to the coordinate frame affixed to the
terrestrial sphere.

Consider for example a coordinate frame affixed to the vessel. In such a
case the GPS will, regardless of the physical location of the vessel, always
indicate a position where the Greenwich Meridian crosses the Equator.

--
Good luck and good sailing.
s/v Kerry Deare of Barnegat
http://home.comcast.net/~kerrydeare

Can you give an instance when this is _not_ the case? Every time I've
started a trip I've experienced a starting speed of roughly zero knots.
give
or take.

most races start when you cross the start line, most crews like to be
underway as they cross it

Nigel wrote:
[Armond ventured] ...

Can you give an instance when this is _not_ the case? Every time
I've started a trip I've experienced a starting speed of roughly
zero knots. give
or take.

most races start when you cross the start line, most crews like to be
underway as they cross it

Interesting, but we're not discussing races. However since you brought it
up, we _could_ consider the very popular races in the Family Islands of the
Bahamas. These start from anchor.

Speaking of other races that start from zero velocity, I like to think back
to my youth as a fairly successful participant in the Le Mans Formula Car
races (falls asleep in a pleasant fantasy)..

--
Good luck and good sailing.
s/v Kerry Deare of Barnegat
http://home.comcast.net/~kerrydeare