How do you rank speed from velocity vectors?

Question

amistre64 · Answer

direction and magnitude define a vector

anonymous · Answer

How would you look at multiple velocity vectors and see which one is the largest change and which is the lowest velocity? For example, one vector goes down two,right three. The other goes up four, left two.

amistre64 · Answer

length ....

amistre64 · Answer

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amistre64 · Answer

direction simply tells us where we end up

amistre64 · Answer

the slope of the 'line' that the vector is a part of defines the rate of change

anonymous · Answer

Ok, thanks!

mrnood · Answer

I don't think this is correct @amistre64 

A vector diagram of velocity usually has the line in the DIRECTION of the vector, and the length of the line represents the MAGNITUDE.

Thus the slope of the line is not representative of the rate of change - it is simply the direction of the vector.

The LENGTH (i.e. magnitude) of the line (if it is a velocity vector) is the speed.

You can calculate the length if you know the distances you have described - e.g. Down 2 , right 3 has a magnitude 

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