"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.