Could someone please help with this question.(adsbygoogle = window.adsbygoogle || []).push({});

For non-inertial frames show that the in-frame time derivative D obeys:

D(fa)=fDa+df/dta

Where f is a scalar function and a is a vector.

I know that Df=df/dt and that Da= the sum of the derivatives of the components of a times the relavant basis vector. But cant seem to apply this to prove the question.

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# Homework Help: In-frame time derivative proof

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