原帖由 keanecat 於 2009-4-21 02:09 PM 發表 
我都勁驚喎...星期四考喇= =
唔知D唔D到 =[
仆佢街..做慣PP...
MC有題俾左resultant force 同埋F1既力俾你..
叫你搵返F2既力..
我見題目好長就廢事睇...跟住搵返佢地呢2條線既resultant force = =''''
mc careless 左4題呀吊!!!!!!!!!!!!!!!!!!!!:cry:
p佢k...勁賤呀!!年年都係搵resultant force...依家陰一陰我 =[
灰曬...:cry: