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Approximately what is the total stopping distance, in feet,

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Approximately what is the total stopping distance, in feet, [#permalink] New post 19 Jan 2016, 08:37
Expert's post
00:00

Question Stats:

66% (00:44) correct 33% (00:57) wrong based on 9 sessions
Image

Note: Total stopping distance is the sum of the distance traveled during reaction time
and the distance traveled after brakes have been applied.

Approximately what is the total stopping distance, in feet, if the car is traveling at a speed of 40 miles per hour when the driver is signaled to stop?

 A 130
 B 110
 C 90
 D 70
 E 40

Practice Questions
Question: 18
Page: 343
Difficulty: medium
[Reveal] Spoiler: OA

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Moderator
Moderator
User avatar
Joined: 18 Apr 2015
Posts: 5150
Followers: 77

Kudos [?]: 1030 [0], given: 4640

CAT Tests
Re: Approximately what is the total stopping distance, in feet, [#permalink] New post 19 Jan 2016, 08:44
Expert's post
Solution

The total stopping distance is equal to the sum of the distance traveled during reaction time and the distance traveled after the brakes have been applied

ON the left side graph, we do have, accordingly with the instructions provided: 45

ON the right side graph, we do have a rough value of \(75 < X < 90\)

\(X= 80/85\)

\(45 + 80/85 = 125/130\)

The correct answer is \(A\)
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Re: Approximately what is the total stopping distance, in feet,   [#permalink] 19 Jan 2016, 08:44
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Approximately what is the total stopping distance, in feet,

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