Posted by y912f on Saturday, January 31, 2009 at 12:22pm.
speed, of a snail or otherwise, is a scalar. Add direction, and it is a vector.
Multiply, or to divide vectors is a little complicated.
ordinary multiplication or division results in a vector.
dot product results in a scalar
cross product results in a vector which is perpendicular to both of the original vectors.
ordinarily, plain multiplication and division is reserved for time dependent phasors, and for spacial vectors, multiplication is usually either dot or cross. However, this is not always the case, and one can do any math operation with vectors. This may be a little more advanced than you are ready for.
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