問題詳情
35 如下圖所示之梁 ABC 之撓曲剛度 EI 為常數，於 C 端受 P 力作用，且梁未變形前，彈簧未受力。已知若移除彈簧，C 端向下位移為 
；則當彈簧之勁度為 k = 24EI L3 時，其軸向壓力為何？ 
(A) 
P
(B) 
P
(C) 
P
(D) 
P
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