問題詳情
5跳蚤 0.1 5.家駿不小心將拿在右手中的巧克力球和錢幣鬆手後，同一高度由靜止垂直掉落，則地面上巧克力球破碎，錢幣完整，請問下列敘述何者正確？（不考慮空氣阻力）
(A)質量大小不知道則無法比較
(B)落地前瞬間，錢幣瞬時速度較大
(C)落地前瞬間，巧克力球瞬時速度較大
(D)落地前瞬間，兩者的瞬時速度一樣大。
(A)質量大小不知道則無法比較
(B)落地前瞬間，錢幣瞬時速度較大
(C)落地前瞬間，巧克力球瞬時速度較大
(D)落地前瞬間，兩者的瞬時速度一樣大。
參考答案
答案：D
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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