一劲度系数K=500N/m的轻质弹簧,竖直固定在水平面上,如图所示.在弹簧正上方1m处,用细线悬挂一质量m=2kg的金属球,当细线被烧断后,金属球落到弹簧上压缩弹簧,但没有超过弹性限度.已知弹簧的
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![一劲度系数K=500N/m的轻质弹簧,竖直固定在水平面上,如图所示.在弹簧正上方1m处,用细线悬挂一质量m=2kg的金属球,当细线被烧断后,金属球落到弹簧上压缩弹簧,但没有超过弹性限度.已知弹簧的](/uploads/image/z/2386677-21-7.jpg?t=%E4%B8%80%E5%8A%B2%E5%BA%A6%E7%B3%BB%E6%95%B0K%3D500N%2Fm%E7%9A%84%E8%BD%BB%E8%B4%A8%E5%BC%B9%E7%B0%A7%2C%E7%AB%96%E7%9B%B4%E5%9B%BA%E5%AE%9A%E5%9C%A8%E6%B0%B4%E5%B9%B3%E9%9D%A2%E4%B8%8A%2C%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA.%E5%9C%A8%E5%BC%B9%E7%B0%A7%E6%AD%A3%E4%B8%8A%E6%96%B91m%E5%A4%84%2C%E7%94%A8%E7%BB%86%E7%BA%BF%E6%82%AC%E6%8C%82%E4%B8%80%E8%B4%A8%E9%87%8Fm%3D2kg%E7%9A%84%E9%87%91%E5%B1%9E%E7%90%83%2C%E5%BD%93%E7%BB%86%E7%BA%BF%E8%A2%AB%E7%83%A7%E6%96%AD%E5%90%8E%2C%E9%87%91%E5%B1%9E%E7%90%83%E8%90%BD%E5%88%B0%E5%BC%B9%E7%B0%A7%E4%B8%8A%E5%8E%8B%E7%BC%A9%E5%BC%B9%E7%B0%A7%2C%E4%BD%86%E6%B2%A1%E6%9C%89%E8%B6%85%E8%BF%87%E5%BC%B9%E6%80%A7%E9%99%90%E5%BA%A6.%E5%B7%B2%E7%9F%A5%E5%BC%B9%E7%B0%A7%E7%9A%84)
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