[jj插沙求教]engine數

有份excercise唔係好識做，問左professor佢又答啲唔答啲咁 求巴打賜教

我自己做嘅答案唔知啱唔啱
a.)

b.)

c.)

唔識搵個max v同埋b part plot graph 唔知t應該set做乜
我幅graph係set咗t=[0:10:100]
求巴打賜教

有份excercise唔係好識做，問左professor佢又答啲唔答啲咁 求巴打賜教

我自己做嘅答案唔知啱唔啱
a.)

b.)

c.)

唔識搵個max v同埋b part plot graph 唔知t應該set做乜
我幅graph係set咗t=[0:10:100]
求巴打賜教

樓主讀緊咩

有份excercise唔係好識做，問左professor佢又答啲唔答啲咁 求巴打賜教

我自己做嘅答案唔知啱唔啱
a.)
[img]https://na.cx/i/57B0950.jpg[/img
b.)
[img]https://na.cx/i/t2Abj0Q.jpg[/img
c.)
[img]https://img.eservice-hk.net/upload/2017/03/23/002719_054f8e48ca613a6ace274397b9f2fe6a.jpg[/img
唔識搵個max v同埋b part plot graph 唔知t應該set做乜
我幅graph係set咗t=[0:10:100]
求巴打賜教

樓主讀緊咩

year 2 n展

除左知道係PDE，乜都唔記得
wave equation?

除左知道係PDE，乜都唔記得
wave equation?

應該唔係wave

shitty ee?

唔係

y(3)=20(e^-3b)=10
點解會出pi?
利申：非engine

Part c Vmax係唔係搵當d^2 y/dt^2 = 0 個陣t係幾多
然後sub落dy/dt？
利申 鳩up, yr1 mech eng

y(3)=20(e^-3b)=10
點解會出pi?
利申：非engine

其實我都唔肯定
我係c/2=2pi/2=pi

Part c Vmax係唔係搵當d^2 y/dt^2 = 0 個陣t係幾多
然後sub落dy/dt？
利申 鳩up, yr1 mech eng

我唔識 但睇題目應該就咁dy/dt就得

渣ga