亚洲男人天堂av,国产一区二区久久精品,国产精品一区二区久久精品,国产精品久久久久久一区二区三区,五月婷婷在线观看视频,亚洲狠狠色丁香婷婷综合

歡迎您訪問(wèn)數(shù)學(xué)考題練習(xí):汽車剎車距離s(m)與速度v(km/h)之間的!

數(shù)學(xué)考題練習(xí):汽車剎車距離s(m)與速度v(km/h)之間的

更新時(shí)間:2024-01-12 16:28:55作者:貝語(yǔ)網(wǎng)校

汽車剎車距離s(m)與速度v(km/h)之間的函數(shù)關(guān)系是,一輛車速為100km/h的汽車,剎車距離是

A.1m

B.10m

C.100m

D.200m

試題答案

C

試題解析

知道距離s(m)與速度v(km/h)之間的函數(shù)關(guān)系式后,把速度代入就能求得距離.

解答:由題意知,

汽車剎車距離s(m)與速度v(km/h)之間的函數(shù)關(guān)系是:

當(dāng)v=100km/h,

s=100m.

故選C.

點(diǎn)評(píng):本題考查二次函數(shù)的實(shí)際應(yīng)用,借助二次函數(shù)解決實(shí)際問(wèn)題.

主站蜘蛛池模板: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |