三個力與運動的基礎物理問題 - 運動
By Daph Bay
at 2006-01-19T00:00
at 2006-01-19T00:00
Table of Contents
自修裡面有三個基礎的問題我不是很懂1.地球質量為月球質量的81倍,兩者連心線長度d,設一火箭在連心線上,至地心的距離為a,若二星球對火箭之引力和為零,則a/d為?答案:設火箭質量m\'月球質量m則[G(81m)m\']/a^2=Gmm\'/(d-a)^2a/d=9/10這個解釋我看不懂(對數字符號的理解力不好)=_=有人可以有更容易懂的解��
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運動
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By Hedda
at 2006-01-20T23:58
at 2006-01-20T23:58
By Skylar DavisLinda
at 2006-01-23T22:42
at 2006-01-23T22:42
By Ida
at 2006-01-21T11:27
at 2006-01-21T11:27
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