How I calculate acceleration given that I have a function for speed? I.e How do i calculate d(Vmag)/dt?

    Vmag = sqrt(U.^2 + V.^2 + W.^2)

[James Tursa]

Are U, V, W some sample data measured in an inertial frame? What is the sampling rate? We need more information than what you have provided ...

[KALYAN ACHARJYA]

RHS There is not "t"(time), what about U, V, W. Without t expression gives you zero result (total differential case)

Speed=distance/time

Acceleration = Velocity/Time

[Torsten]

Acceleration = (U*dU/dt+V*dV/dt+W*dW/dt)/Vmag

Best wishes

Torsten.