某驾驶员手册规定具有良好刹车性能的汽车在以80km/h的速率行驶时,可以在56m的距离内被刹住,在以48km/h的速率行驶时,可以在24m的距离被刹住,假设对于这两种速率,驾驶员所允许的反应时间(
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![某驾驶员手册规定具有良好刹车性能的汽车在以80km/h的速率行驶时,可以在56m的距离内被刹住,在以48km/h的速率行驶时,可以在24m的距离被刹住,假设对于这两种速率,驾驶员所允许的反应时间(](/uploads/image/z/280889-17-9.jpg?t=%E6%9F%90%E9%A9%BE%E9%A9%B6%E5%91%98%E6%89%8B%E5%86%8C%E8%A7%84%E5%AE%9A%E5%85%B7%E6%9C%89%E8%89%AF%E5%A5%BD%E5%88%B9%E8%BD%A6%E6%80%A7%E8%83%BD%E7%9A%84%E6%B1%BD%E8%BD%A6%E5%9C%A8%E4%BB%A580km%2Fh%E7%9A%84%E9%80%9F%E7%8E%87%E8%A1%8C%E9%A9%B6%E6%97%B6%2C%E5%8F%AF%E4%BB%A5%E5%9C%A856m%E7%9A%84%E8%B7%9D%E7%A6%BB%E5%86%85%E8%A2%AB%E5%88%B9%E4%BD%8F%2C%E5%9C%A8%E4%BB%A548km%2Fh%E7%9A%84%E9%80%9F%E7%8E%87%E8%A1%8C%E9%A9%B6%E6%97%B6%2C%E5%8F%AF%E4%BB%A5%E5%9C%A824m%E7%9A%84%E8%B7%9D%E7%A6%BB%E8%A2%AB%E5%88%B9%E4%BD%8F%2C%E5%81%87%E8%AE%BE%E5%AF%B9%E4%BA%8E%E8%BF%99%E4%B8%A4%E7%A7%8D%E9%80%9F%E7%8E%87%2C%E9%A9%BE%E9%A9%B6%E5%91%98%E6%89%80%E5%85%81%E8%AE%B8%E7%9A%84%E5%8F%8D%E5%BA%94%E6%97%B6%E9%97%B4%EF%BC%88)
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