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範例:斜向拋射與瞬時功率

1Kg的物體以45o仰角初速10m/s作斜向拋射，求在：(1)出發點 (2)最高點 (3)著地點時，重力所施的瞬時功率？(不計空氣阻力。g=10 m/s2)


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By admin – 2009 年 04 月 09 日

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