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?

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter2: Working With Real Numbers
Section2.3: Rules For Addition
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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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