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範例:引力場之力學能守能

欲將一砲彈鉛直向上發射,使到達高度等於地球的半徑R,不計空氣阻力,若地球表面的重力加速度為g,則砲彈所需初速度為何?

 

 

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Posted in 重力位能的一般式.

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By admin – 2009 年 04 月 28 日

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