关于冲量和动量的计算题2用0.5kg的铁锤把钉子钉进木头,锤击钉子的方向垂直向下,打击时铁锤的速度V=4m/s,打击后铁锤的速度为零,打击的作用时间是0.01s.求;(1)不计铁锤重力,铁锤钉钉子的
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![关于冲量和动量的计算题2用0.5kg的铁锤把钉子钉进木头,锤击钉子的方向垂直向下,打击时铁锤的速度V=4m/s,打击后铁锤的速度为零,打击的作用时间是0.01s.求;(1)不计铁锤重力,铁锤钉钉子的](/uploads/image/z/4765454-62-4.jpg?t=%E5%85%B3%E4%BA%8E%E5%86%B2%E9%87%8F%E5%92%8C%E5%8A%A8%E9%87%8F%E7%9A%84%E8%AE%A1%E7%AE%97%E9%A2%982%E7%94%A80.5kg%E7%9A%84%E9%93%81%E9%94%A4%E6%8A%8A%E9%92%89%E5%AD%90%E9%92%89%E8%BF%9B%E6%9C%A8%E5%A4%B4%2C%E9%94%A4%E5%87%BB%E9%92%89%E5%AD%90%E7%9A%84%E6%96%B9%E5%90%91%E5%9E%82%E7%9B%B4%E5%90%91%E4%B8%8B%2C%E6%89%93%E5%87%BB%E6%97%B6%E9%93%81%E9%94%A4%E7%9A%84%E9%80%9F%E5%BA%A6V%3D4m%2Fs%2C%E6%89%93%E5%87%BB%E5%90%8E%E9%93%81%E9%94%A4%E7%9A%84%E9%80%9F%E5%BA%A6%E4%B8%BA%E9%9B%B6%2C%E6%89%93%E5%87%BB%E7%9A%84%E4%BD%9C%E7%94%A8%E6%97%B6%E9%97%B4%E6%98%AF0.01s.%E6%B1%82%EF%BC%9B%EF%BC%881%EF%BC%89%E4%B8%8D%E8%AE%A1%E9%93%81%E9%94%A4%E9%87%8D%E5%8A%9B%2C%E9%93%81%E9%94%A4%E9%92%89%E9%92%89%E5%AD%90%E7%9A%84)
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