問題詳情
62. 有一燒杯盛水後，被放置於一磅秤上。今在燒杯的水中自由釋放一顆鋼珠，問鋼珠抵達燒杯底部前與抵達後靜置杯底時，磅秤讀值相差多少？(重力加速度=g ，鋼珠體積=V，鋼珠密度=D，水密度=ρ)
(A)(D+ρ)Vg
(B)DVg
(C)(D-ρ)Vg
(D)ρVg
(A)(D+ρ)Vg
(B)DVg
(C)(D-ρ)Vg
(D)ρVg
參考答案
答案：C
難度：適中0.510204
統計：A(6),B(13),C(25),D(3),E(0)
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