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  5. 想問問第五題要怎麼寫
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Junior High
Nico
Nico

想問問第五題要怎麼寫

( TT a 14. 右圖甲,一塊100gw木塊平放時至少須施 力50gw方能拉動,則將系統直立時如右 圖乙,則木塊與牆壁的摩擦力為多少gw? 5. 4 。 F F (甲) (乙) 106 (A) 50 (B)100 (C) 150 (D)200 15.承上題,應至少以若干gw的水平力方能使物體不下墜? (A) 50 (B)100 (C) 150 (D) 200 新到2米的水平推力,物體靜止不動,物體運動 秘訪
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