### Home > APCALC > Chapter 9 > Lesson 9.4.2 > Problem9-124

9-124.

A car is traveling north at $30$ miles per hour while a truck is traveling east at $40$ miles per hour. If both vehicles were located at the same place at $t = 0$, how fast is the distance between them changing when $t = 3$ hours? Homework Help ✎