If the brakes on a car can give the car a constant negative acceleration of 2k m/2 , 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? (A 25k2 m/s (B 20 m/s (c) 5k m/s (D D 10/k mls

If the brakes on a car can give the car a constant negative acceleration of 2k m/2 , 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? (A 25k2 m/s (B 20 m/s (c) 5k m/s (D D 10/k mls

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter4: Forces In One Dimension

Section: Chapter Questions

Problem 2STP

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Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –

Question

If the brakes on a car can give the car a constant negative acceleration of
2k m/2 , 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?
(A
25k2 m/s
(B
20
m/s
(c) 5k m/s
(D
D
10/k mls

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