Khan Academy
Khan Academy: Calculus: Derivative of a Position Vector Valued Function
Video lesson defining the derivative of a position vector valued function by visualizing it and setting it up. [14:45]
Khan Academy
Khan Academy: Calculus: Differential of a Vector Valued Function
Video lesson reviewing position vector valued functions and their derivatives. Explanation does not contain any specific examples. [5:04]
Khan Academy
Khan Academy: Calculus: Vector Valued Function Derivative Example
Video lesson solving for the derivatives for a two specific vector-valued functions that describe the same path but have different velocities. [12:45]