## PRACTICE PROBLEM SET 12 Now try these problems on your own

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

Problem

## PRACTICE PROBLEM SET 12 Now try these problems on your own. The answers are in Chapter 23, starting on page 504. 3. Cars A and B leave a town at the same time. Car A heads due south at a rate of

80 \mathrm{~km} / \mathrm{hr}

and car B heads due west at a rate of

60 \mathrm{~km} / \mathrm{hr}

. How fast is the distance between the cars increasing after three hours?

Related theory

Related Rates
Rates of change
Rate of change of quantities

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