Quote:

> wrote this crap:

> >> >> >Direction is not a vector. Direction is a part of what makes up a

> >> >> >vector: direction and quantity.

> >> >> A vector is a quantity having both magnitude and direction. If the

> >> >> velocity is a unit then the direction makes the vector. I'm not

> >> >> saying that you are wrong.

> >> >I know what a vector is. You by your earlier statement showed you did

> >> >not.

> >> OK, we're going to go through this again. I WAS WRONG. I made a

> >> slight error. velocity is a scalar and direction is a scalar. You

> >> need to add them together to get a vector.

> >Velocity is not a scalar. Velocity IS a vector.

> >Speed is a scalar. Take speed and direction and you get a vector...

> >...called velocity.

> I think you should check your notes. Speed is a variable and velocity

> is a constant.

You are (and this is getting to be quite a habit with you).

Quote:

> Do you have a speedometer on your car or a velocitymeter?

The device in your car isn't measuring direction, so it can't be

providing you a velocity.

"velocity

noun ( pl. velocities )

the speed of something in a given direction: the velocities of the

emitted particles."

See: this is where you should step up and simply say, "Sorry. I had that

wrong."

"In kinematics, velocity is the rate of change of the position of an

object, equivalent to a specification of its speed and direction of

motion. Speed describes only how fast an object is moving, whereas

velocity gives both how fast and in what direction the object is moving."

<http://en.wikipedia.org/wiki/Velocity>

And Wikipedia's source:

"Vector analysis; a text-book for the use of students ... . Gibbs, J.

Willard (Josiah Willard), 1839-1903."

<http://babel.hathitrust.org/cgi/pt?id=mdp.39015000962285;seq=149;view=1u

p;num=125>

--

Alan Baker

Vancouver, British Columbia

"If you raise the ceiling four feet, move the fireplace from that wall

to that wall, you'll still only get the full stereophonic effect if you

sit in the bottom of that cupboard."