問題詳情
5. 如圖所示，將一小球從一光滑斜面上由靜止釋放，讓其滑下再從 A 點沿水平方向飛出，假設小球由斜面進入水平面，其動能大小不變，且不考慮任何阻力之作用及小球之大小，若兩個斜面之傾斜角θ均為45°，欲使小球飛越下方斜面，不致落在斜面上，則圖中H與h之關係應為H大於
(A) 
(B)
(C) 
(D)h
(E)一律給分 
參考答案
無參考答案
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