我都唔知....
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F=ma
F increase
m會唔會大左? 本帖最後由 aildux 於 26-2-2010 19:27 編輯
會?-.-
screen 發表於 24-2-2010 20:55 http://www.nakuz.com/bbs/images/common/back.gif
我O咗....
consider X direction:T=Lmw^2.................1
consider Y direction:g=Lw^2cosθ.............2
from 1, when w increases, L decreases
consider 2, when w increases, L decreases, whereas cosθ remains unchanged.
之後我諗錯 呢個解法先啱 我O咗....
consider X direction:T=Lmw^2.................1
consider Y direction:g=Lw^2cosθ....... ...
aildux 發表於 26-2-2010 19:15 http://www.nakuz.com/bbs/images/common/back.gif
θ唔等於90度果陣
第一條式岩咩? 你唔明個experiment
個tension係由個砝碼提供
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