Answers

2016-03-29T12:32:13+05:30

The derivative of a vector valued function gives a new vector valued function that is tangent to the defined curve.  The analogue to the slope of the tangent line is the direction of the tangent line.  Since a vector contains a magnitude and a direction, the velocity vector contains more information than we need.  We can strip a vector of its magnitude by dividing by its magnitude.  

 

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