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Question: differentiate the unit vector of a rotating axis

Question:differentiate the unit vector of a rotating axis

brian abraham 634 Maple
November 15 2006
0
I have a frame where u_n and u_t are perpendicular unit vectors with u_n pointing to the right and u_t pointing up. Where the frame is rotating with angular velocity w in the anti-clockwise direction and time is t then d(u_n)/dt = w u_t How do I set Maple up so that it will do a symbolic differentiation of unit vectors - or any vector - in a rotating frame?
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