[理工] [核對] 清大100應力

看板Grad-ProbAsk作者 (泳鏡)時間12年前 (2012/02/15 16:04), 編輯推噓3(3推 0噓 16→)
留言19則, 5人參與, 最新討論串1/1
1.μ=0.4 2.Ax=200→ Ay=122↑ Bx=200← By=10↓ 3.(a)Fr=55.92N↙ Ft=8.91N↖ (b)P=29.26N Q=59.50N 4.Vp=-10√3i-10j Ap=20i-20√3j 5.(a)球A:Vn'=0.378Vo → Vt'=0.5Vo ↘ 球B:V'=0.622Vo ← (b)沒算 6.Va=Vb=√(3gL/5) Na=9mg/20 Nb=13mg/20 謝拉^^ -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 111.251.212.224
推
02/15 16:17, , 1F
1.μ=0.3169 2.對 3.對 4.對 5.Vb'=0.6928V0←
02/15 16:17, 1F
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02/15 16:18, , 2F
Va'=0.6928V0 i + 0.2V0 j 6. NA=11mg/20 NB=9mg/20
02/15 16:18, 2F
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02/15 16:24, , 3F
6.a勒@@?
02/15 16:24, 3F
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02/15 16:27, , 4F
1.我還是算0.4= = 5.我列式有寫錯 你應該是對的
02/15 16:27, 4F
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02/15 16:32, , 5F
6.也是我算錯@@
02/15 16:32, 5F
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02/15 16:33, , 6F
1.我重算答案變為μ=0.21 我NC=36N 你呢?
02/15 16:33, 6F
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02/15 16:34, , 7F
Nc=36 Na=49.6@@
02/15 16:34, 7F
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02/15 16:35, , 8F
6.a α=(3g√3)/10L
02/15 16:35, 8F
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02/15 16:38, , 9F
1.我又算出原本的0.3169= = 我NA=69.27N
02/15 16:38, 9F
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02/15 16:42, , 10F
對了@@ 0.3169 真的是鬼打牆...
02/15 16:42, 10F
推
02/15 16:43, , 11F
u我也算0.3169 NC=36 NA懶得帶
02/15 16:43, 11F
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02/15 16:44, , 12F
今年清大只收5個 要很拚 唉~
02/15 16:44, 12F
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02/15 16:48, , 13F
+備取可能要前15名才會上吧=.=
02/15 16:48, 13F
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02/15 16:49, , 14F
直接沒放希望了XD
02/15 16:49, 14F
推
02/15 16:49, , 15F
大家一起加油吧XD 有摸到成大我就滿足了
02/15 16:49, 15F
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02/15 17:26, , 16F
摁加油囉^^
02/15 17:26, 16F
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02/16 00:49, , 17F
我怎麼覺得沒100不會上 Q_Q"
02/16 00:49, 17F
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02/16 14:05, , 18F
謝謝提醒ˊˋ
02/16 14:05, 18F
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09/11 14:56, , 19F
1.我又算出原本的0. https://daxiv.com
09/11 14:56, 19F
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文章代碼(AID): #1FEsSaiy (Grad-ProbAsk)