中文我就不翻譯了.
簡單的靜力學：
T1 = mg/sin70 = 0.5*9.8/0.94 = 5.2N
T2 = mg ctg70 = 0.5*9.8*0.364 =1.78N
其中T1是掛在房頂?shù)哪莻€.
T2是橫向拉的那個
A block with 500g is hanging from the ceiling.There is also a string that is pulling the block towards one wall forcing
A block with 500g is hanging from the ceiling.There is also a string that is pulling the block towards one wall forcing the string that is attached to the block and ceiling to from an angle 70 degree withe respect to the ceiling.what is the tension in both strings?
英語人氣：430 ℃時間：2020-04-09 02:55:39
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