the brakes on a car give the car a constant negative acceleration of 2k m/s2, where k is a positive constant. What is the greatest speed it may be going if it is necessary to be able to stop the car within 25 meters after the brakes are applie

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
Chapter12: Quadratic Functions
Section12.8: Joint And Combined Variation
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If the brakes on a car give the car a constant negative acceleration of 21 m/e2, where k is a positive constant. What is the greatest speed it may be going if it is necessary to be able to stop the car within 25 meters after the brakes are applied?
O 10/E
m/s
20
m/s
O 5k m/s
25k 2 m/s
Transcribed Image Text:If the brakes on a car give the car a constant negative acceleration of 21 m/e2, where k is a positive constant. What is the greatest speed it may be going if it is necessary to be able to stop the car within 25 meters after the brakes are applied? O 10/E m/s 20 m/s O 5k m/s 25k 2 m/s
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