A car traveling at a rate of 30 ft/sec is approaching an intersection. When the car is 120 ft from the intersection, a truck traveling at the rate of 40 ft/sec crosses the intersection. The car and truck are on roads which meet at a right angle. How fast are the car and truck separating 2 sec after the truck leaves the intersection?

Elementary Geometry for College Students
6th Edition
ISBN:9781285195698
Author:Daniel C. Alexander, Geralyn M. Koeberlein
Publisher:Daniel C. Alexander, Geralyn M. Koeberlein
Chapter8: Areas Of Polygons And Circles
Section8.5: More Area Relationships In The Circle
Problem 42E: A goat is tethered to a barn by a 12-ft chain. If the chain is connected to the barn at a point 6 ft...
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20. A car traveling at a rate of 30 ft/sec is approaching an intersection. When the car is 120 ft from
the intersection, a truck traveling at the rate of 40 ft/sec crosses the intersection. The car and
truck are on roads which meet at a right angle. How fast are the car and truck separating 2 sec
after the truck leaves the intersection?
Transcribed Image Text:20. A car traveling at a rate of 30 ft/sec is approaching an intersection. When the car is 120 ft from the intersection, a truck traveling at the rate of 40 ft/sec crosses the intersection. The car and truck are on roads which meet at a right angle. How fast are the car and truck separating 2 sec after the truck leaves the intersection?
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