Derivative Application- Two cars are traveling along perpendicular roads, car A at 40mph and car B at 60mph. At 12:00 PM, car A reaches the intersection, and car B is 90 mi away. At 1 PM, the rate, in mph, at which the distance between the cars is changing is...?

Question

anonymous · Answer

@ganeshie8 @zepdrix

anonymous · Answer

@geerky42

anonymous · Answer

that sleek-feathered ones going to crash if he drives that fast

anonymous · Answer

*facepalm*

anonymous · Answer

does anyone have any idea how to do this?

adamaero · Answer

Ahhh, related rates. Just reviewing how to do this technique...hopefully I still remember by looking at a few examples: https://worldtracker.org/media/library/Mathematics/Calculus/Stewart%20-%20Calculus%20-%20Early%20Transcendentals%206e%20HQ%20(Thomson,%202008).pdf#page=12#page=272

anonymous · Answer

ok thank you a lot

anonymous · Answer

i think I can figure it out by this

zepdrix · Answer

Related rates? Ooo these are fun :)
Got it figured out?

anonymous · Answer

yea thanks