首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
DISTANCE TRAVELED BY A CAR ACCORDING TO THE CAR’S SPEED WHEN THE DRIVER IS SIGNALED TO STOP *Reaction time is
DISTANCE TRAVELED BY A CAR ACCORDING TO THE CAR’S SPEED WHEN THE DRIVER IS SIGNALED TO STOP *Reaction time is
admin
2014-08-13
59
问题
DISTANCE TRAVELED BY A CAR ACCORDING TO THE CAR’S SPEED
WHEN THE DRIVER IS SIGNALED TO STOP
*Reaction time is the time period that begins when the driver is signaled to stop and ends when the driver applies the brakes.
Note
: Total stopping distance is the sum of the distance traveled during reaction time and the distance traveled after brakes have been applied.
The total stopping distance for the car traveling at 60 miles per hour is approximately what percent greater than the total stopping distance for the car traveling at 50 miles per hour?
选项
A、0.22
B、0.3
C、0.38
D、0.45
E、0.52
答案
C
解析
To solve this problem you need to find the total stopping distance at 50 miles per hour and at 60 miles per hour, find their difference, and then express the difference as a percent of the shorter total stopping distance. You need to use both graphs to find the total stopping distances. At 50 miles per hour, the total stopping distance is approximately 55 + 137 = 192 feet; and at 60 miles per hour it is approximately 66 + 198 = 264 feet. The difference of 72 feet as a percent of 192 feet is 72/192= 0.375, or approximately 38%. The correct answer is Choice C.
转载请注明原文地址:https://kaotiyun.com/show/s5kO777K
本试题收录于:
GRE QUANTITATIVE题库GRE分类
0
GRE QUANTITATIVE
GRE
相关试题推荐
这个消息使她大为震惊,但她很快就镇定了下来。
In2014,olderAmericansfell29milliontimes,leadingto7millioninjuries,accordingtoareportpublishedlastweek.About
Somepeoplethinkoflifeasagame.Therearesimilaritiesbetweenlifeandgames;bothcanbeplayed,bothhaverules,andbot
Caraccidentskillmorethanonemillionpeopleandinjureapproximately50millioneachyear.【C1】______,millionsoffishcans
ThephysicalproblemthatmanyadultAmericanshaveisthat______.IncomparisonwiththeadultAmericanPopulationtoday,the
Whatyou’realwaysheard?We’reeatingtoomuchsalt.TheaverageAmericangetsabout3.4gramsofsodiumeveryday,farmoreth
Forthispart,youareallowed20minutestowriteacompositionaboutlettersofapologies.Youshouldwriteinnolessthan10
YouprobablyknowwhoMarieCuriewas,butyoumaynothaveheardofRachelCarson.Oftheoutstandingladieslistedbelow,who
Intherectangularquadrantsystemshownabove,whichquadrant,ifany,containsnopoint(x,y)thatsatisfiestheequationx2-2
Intherectangularquadrantsystemshownabove,whichquadrant,ifany,containsnopoint(x,y)thatsatisfiestheequation3x+
随机试题
被鲁迅称为“西汉宏文”的作品是()。
下列哪种说法是错误的()(1994年第34题)
化学性污染物进入人体的主要途径是
微球的主要类型包括
在弹性媒质中传播的一平面简谐波,某一时刻在传播方向上媒质中某质元在负的最大位移处,其能量是()。
MissYangwillteachusChinesetoday______MrZhang.
民警在辖区内的城市森林公园巡逻时,发现有母女二人在路边惊恐啼哭并不时用纸巾擦拭腿上的血迹。经了解得知,母女二人刚才被一条烈性犬咬伤,无人看管的烈性犬就在前方不远处趴卧并露出凶相,随时有可能攻击行人,行人见状纷纷躲避。民警以下措施不正确的是:
新中国成立之初,中国共产党面临的考验主要有()。
______arethosethatcannotbeusedindependentlybuthavetobecombinedwithothermorphemes,eitherfreeorbound,toforma
Ifthesupplyofvitaminsandmineralsinthedietis______,thiswillresultinchangesinbodychemistry.
最新回复
(
0
)