Science
Junior High
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請問第13怎麼解？
( ) 13 如右圖,若不考慮滑輪的摩擦力,兩物體
11
的重量分別為5kgw8kgw,定滑輪及動
滑輪的重量皆為4kgw,系統處於平衡狀
態,則磅秤讀數應為多少kgw?
(A) 3 (B) 3.5 (C) 5 (D) 17
GI
5kgw 8kgw
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