A Car Leaves an Intersection Traveling West $4 \mathrm { sec }$

question 6

Short Answer

A car leaves an intersection traveling west. Its position $4 \mathrm { sec }$ later is $26 \mathrm { ft }$ from the intersection. At the same time, another car leaves the same intersection heading north so that its position $4 \mathrm { sec }$ later is $26 \mathrm { ft }$ from the intersection. If the speeds of the cars at that instant of time are $12 \mathrm { ft } / \mathrm { sec }$ and 10 $\mathrm { ft } / \mathrm { sec }$ , respectively, find the rate at which the distance between the two cars is changing. Round to the nearest tenth if necessary.

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