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9. 在一直線道路上人以等速度追趕公車,當人距公車 30 公尺時,公車由靜止作等加速度離開,人和公車的 x-t 圖如下,求人和公車最接近的距離為多少公尺?(圖形僅供參考,比例不一定正確) (A)2
問題詳情
9. 在一直線道路上人以等速度追趕公車,當人距公車 30 公尺時,公車由靜止作等加速度離開,人和公車的 x-t 圖如下,求人和公車最接近的距離為多少公尺?(圖形僅供參考,比例不一定正確)
(A)2
(B)3
(C)4
(D)5
(E)6
參考答案
答案:D
難度:
計算中
-1
書單:
沒有書單,新增
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6. 由均勻電阻線所接成的圖形中,最大的正方形邊長 4 公分,最小的正方形 1 公分,每公分長的電阻線電阻值皆為 1 歐姆,則由 A、B 端測量總電阻為多少歐姆?(A) (B) (C) (D)
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