問題詳情
一、某鋼球質量為 12 kg 被兩條繩索懸吊著，如圖 1。在鋼球下方另有螺旋拉伸彈簧的向下力 200 N。
⑴試繪出該鋼球之受力自由體圖。（5 分）
⑴試繪出該鋼球之受力自由體圖。（5 分）
參考答案
無參考答案
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