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碰撞前機械能為E,如果不是完全非彈性碰撞,碰撞後機械能E'≠0完全非彈性碰撞後機械能為0,損失當然最大柯尼希定理是競賽看的吧……對於這題,有更好的理解.首先想像一個情景.一輛小車A在勻速運動,另一輛小車B靜止,B後面…
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