如图所示,质量为m的物体A压在放在地面上竖直轻弹簧B上,现用细绳跨过定滑轮将物体A与另一轻弹簧C连接,

2025-05-13 15:03:23
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回答1:

解:在b点时,B弹簧长度增加了ΔX 1 ,A弹簧长度增加了ΔX 2
ΔX 1 =
ΔX 2 =
S ab =ΔX 1 +ΔX 2 = + =