SOLUTION: two cars leave a crossroads at the same time. One heads north at 50 km/h and the other heads east at 70 km/h. How far apart are the cars after .5 h? after 2.0 h?

Question 346177: two cars leave a crossroads at the same time. One heads north at 50 km/h and the other heads east at 70 km/h. How far apart are the cars after .5 h? after 2.0 h?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Rate*Time=Distance
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Since they are traveling in perpendicular directions, you can use the Pythagorean theorem to calculate the distance between them (the hypotenuse).

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Now you have the distance as a function of time.
When , miles
Do the same fo the other times.

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