The skid marks made by an automobile indicate that its brakes were fully applied for a distance of 160ft before it came to a stop. Suppose that the car in question has a constant deceleration of 20ft/sec² under the conditions of the skid. How fast was the car traveling when its brakes were first applied?

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
Section8.4: Cicumference And Area Of A Cicle
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The skid marks made by an automobile indicate that its brakes were fully applied
for a distance of 160ft before it came to a stop. Suppose that the car in question
has a constant deceleration of 20ft/sec? under the conditions of the skid. How
fast was the car traveling when its brakes were first applied?
80 ft/sec
90 ft/sec
60 ft/sec
70 ft/sec
Transcribed Image Text:The skid marks made by an automobile indicate that its brakes were fully applied for a distance of 160ft before it came to a stop. Suppose that the car in question has a constant deceleration of 20ft/sec? under the conditions of the skid. How fast was the car traveling when its brakes were first applied? 80 ft/sec 90 ft/sec 60 ft/sec 70 ft/sec
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