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15. 質量不同的 A、B 兩木塊,從同一高度自由落下,至某一位置,A 被水平飛來的子彈擊中(子彈未穿出),不計空氣阻力,則 A、B 兩木塊的落地時間 t1、t2 的關係為何? (A) t1>t2 (
問題詳情
15. 質量不同的 A、B 兩木塊,從同一高度自由落下,至某一位置,A 被水平飛來的子彈擊中(子彈未穿出),不計空氣阻力,則 A、B 兩木塊的落地時間 t1、t2 的關係為何?
(A) t1>t2
(B) t1= t2
(C) t1< t2
(D) 若 AB 兩木塊質量相同,則 t1= t2
參考答案
答案:A
統計:A:0,B:0,C:0,D:0,E:0
難度:計算中
上一篇 :
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