A train’s position function satisfies

MATHEMATICS · Subjective · AP · Calculus AB · Contextual Applications of Differentiation · Contextual Applications of Differentiation

Problem

A train’s position function satisfies x′(3)=28x'(3)=28, where xx is measured in kilometers and tt in minutes. Explain the practical meaning of the value x′(3)=28x'(3)=28 in this context, including appropriate units.

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