You do need to use the chain rule
Unfortunately, I do not know vector calculus
This question may not belong here but it is a simple derivative question including vectors.
are unit vectors
I have a couple questions:
1) is the derivative of sin(wt), cos(wt), or do I do something extra with the angle in the parenthesis?
2) is the unit vector x considered a function? and if so what is it's derivative? I would assume