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Old 20 µØÅÒ¤Á 2012, 18:35
thai_be thai_be äÁèÍÂÙèã¹Ãкº
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thai_be is on a distinguished road
Default ʶԵÂÈÒʵÃì/statics ¢é͹Õé¤ÇÃá¡éÍÂèÒ§ääÃѺ (Á.»ÅÒÂ)

ãËéá¡ F µÒÁ᡹ x' ¡Ñº y ¹Ð¤ÃѺ

¼ÁÃÙéáµèà©Å¹ФÃѺÇèÒ
Fx' = 177N
Fy = 217N

àÃÔèÁµé¹ÍÂèÒ§äôչФÃѺ
¼Á¤Ô´ÇèÒ Fx' = 200*cos(70°) «ÐèÍÕ¡ áµèäÁèãªè¹Ð¤ÃѺ
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àÇÅÒ·ÕèáÊ´§·Ñé§ËÁ´ à»ç¹àÇÅÒ·Õè»ÃÐà·Èä·Â (GMT +7) ¢³Ð¹Õéà»ç¹àÇÅÒ 23:40


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