[理工] [動力]清大98-考題

[boy210637 (小毓)]

剛剛寫完 可以麻煩有答案的幫我對一下嗎??感謝好心人

            fmg
1. F = --------------
       fsinθ + cosθ

          F                -1  F
2. T = ------  ,   θ = sin  ------
        sinθ                  Fs

3. (a) T  (b) F  (c) F  (d) F  (e) T  (f) T  (g) T  (h) T  (i) T  (j) F

4. 不會寫= =

5. (a) ω = 2.396 (rad/s)(順時針)  α = 34.49 (rad/s^2)(順時針)

   (b) Ve = 1.342 (m/s)   ae = 9.11 (m/s^2)

6.(a) h = (2/3)L  (b) α = 7.78 (rad/s^2)(順時針)  (c) Ax = 0   Ay = 9.8(N)

--
※ 發信站: 批踢踢實業坊(ptt.cc) 
◆ From: 114.43.152.7
推 ntust661:認真@@!
推 qoodeva:3.(d)T (g)F (j)T 4.(a)a=2(w^2)*√(r^2-(ro)^2)
→ qoodeva:(b)2m*(w^2)*√(r^2-(ro)^2)
→ qoodeva:其餘沒寫的代表你寫對了  你好強阿大大= =
→ boy210637:3.的(d)應該很明顯是F吧= = eθ的微分不是-er嗎 還是我
→ boy210637:搞錯了?
→ boy210637:還是真的很感謝你幫我對 辛苦你了
→ honestonly:3.d 應該是F
推 bjackal:F+1
推 qoodeva:抱歉解答抄錯...  (d)是F沒錯