如图甲为一个木块用细绳系在容器底部,向容器内倒水,当木块露出水面的体积是20cm3细绳对木块的拉力为0.6N,将细绳剪断,木块上浮,静止时有2/5的体积露出水面,如图乙,求此时木块受到的浮力
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![如图甲为一个木块用细绳系在容器底部,向容器内倒水,当木块露出水面的体积是20cm3细绳对木块的拉力为0.6N,将细绳剪断,木块上浮,静止时有2/5的体积露出水面,如图乙,求此时木块受到的浮力](/uploads/image/z/9619836-60-6.jpg?t=%E5%A6%82%E5%9B%BE%E7%94%B2%E4%B8%BA%E4%B8%80%E4%B8%AA%E6%9C%A8%E5%9D%97%E7%94%A8%E7%BB%86%E7%BB%B3%E7%B3%BB%E5%9C%A8%E5%AE%B9%E5%99%A8%E5%BA%95%E9%83%A8%2C%E5%90%91%E5%AE%B9%E5%99%A8%E5%86%85%E5%80%92%E6%B0%B4%2C%E5%BD%93%E6%9C%A8%E5%9D%97%E9%9C%B2%E5%87%BA%E6%B0%B4%E9%9D%A2%E7%9A%84%E4%BD%93%E7%A7%AF%E6%98%AF20cm3%E7%BB%86%E7%BB%B3%E5%AF%B9%E6%9C%A8%E5%9D%97%E7%9A%84%E6%8B%89%E5%8A%9B%E4%B8%BA0.6N%2C%E5%B0%86%E7%BB%86%E7%BB%B3%E5%89%AA%E6%96%AD%2C%E6%9C%A8%E5%9D%97%E4%B8%8A%E6%B5%AE%2C%E9%9D%99%E6%AD%A2%E6%97%B6%E6%9C%892%2F5%E7%9A%84%E4%BD%93%E7%A7%AF%E9%9C%B2%E5%87%BA%E6%B0%B4%E9%9D%A2%2C%E5%A6%82%E5%9B%BE%E4%B9%99%2C%E6%B1%82%E6%AD%A4%E6%97%B6%E6%9C%A8%E5%9D%97%E5%8F%97%E5%88%B0%E7%9A%84%E6%B5%AE%E5%8A%9B)
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