問題詳情
根據附圖作滑車實驗，滑車與砝碼的質量皆為 1 公斤，OA 間距離 90cm，砝碼與地面距離 40cm，若重力加速度 g=10m/s2且忽略摩擦力，請問當砝碼自由落地後滑車到達 A 點的瞬時速度為何?
(A) 1
(B) 2
(C) 3
(D) 4 m/s
參考答案
無參考答案
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