HOW FAST WOULD A SURFBOARD HAVE TO TRAVEL TO CREATE FRICTION AND TURN WATER TO STEAM?

42mph

Why do I feel a strange compulsion to say "how much wood could a woodchuck chuck?......

The velocity of water at the board is always zero.

as speed approaches infinity the surface temp maxes out at 106 degrees, assuming a water temp of 62 degrees, 3 foot swells?
So no steam would occur.

220

What is the temperature of the water?

Depends on what that salinity is.

Oh yea! that too

never

the heat would never have a chance to accumulate

never

besides a surfboard is propelled by water

for air friction to occur the board would have to be moving under its ow POWER!

34,286 kn

once the board has caught up to the wave it is zero.

There is a net force of more then zero up until that time.

What they are must be calculated for channels, concavities, rocker, shapes imposed on the bottom of a surfboard to name a few.


Just sayin.

Just as fast as a alpine downhill ski racer would have to go, to turn snow to water!

Last Edited by Ricfly52 on 01/28/2010 09:26 PM

about 500 mph.

Just a back of the envelope calculation here - if memory serves ave molecular velocity at room temp is about 600mph or 300m/sec sq - thats about 300 degrees on the kelvin scale so at a boiling point of 380, with temp being a measure of kinetic energy (1/2 M.V sq)

Then a surf board travelling at 70mph will begin to impart enough energy to the surface layer of molecules to break free from the water surface as steam!

The velocity of water at the board is always zero.

"no-slip condition"

Nearly the same amount of time
to fuck a bucket of water to boiling point

Dont forget to factor in the frictional co-efficient of the surface of the material of the board.