一???柱體在??上?下滾,??????這個??卻低?往上???/p>
??體利??心?不??形??差?使得???????滾?,??柱體卻????坡下滾??/p>
調整????以v??張??5度?????體??柱,?察兩?於?面上???形?差異??
?為????使????這???????高?,???細?察??現,?椎??質心??由高?低?跑?並無????????/p>
??體???件?
?y1 ?移?d l ??質?沿?????距離??/p>
?y2 ??體移?d l ???觸?面點??直位移??/p>
如?給??β=30?? γ=55??要?計???小?α?值為多??/p>
Answer:(??????/b> α=45.57??/font>
Fundamentals of Physics, Halliday
?旻峰、鄭???陳?中???良
???? ?彥?? ???strong>
?昭????/p>