2. 用50N的水平拉力F拉一个质量为10kg的物体在水平地面上前进.若物体前进了10m,拉力F做的功W1= ,重2.\x09用50N的水平拉力F拉一个质量为10kg的物体在水平地面上前进.若物体前进了10m,拉力F做的
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![2. 用50N的水平拉力F拉一个质量为10kg的物体在水平地面上前进.若物体前进了10m,拉力F做的功W1= ,重2.\x09用50N的水平拉力F拉一个质量为10kg的物体在水平地面上前进.若物体前进了10m,拉力F做的](/uploads/image/z/8413390-46-0.jpg?t=2%EF%BC%8E+%E7%94%A850N%E7%9A%84%E6%B0%B4%E5%B9%B3%E6%8B%89%E5%8A%9BF%E6%8B%89%E4%B8%80%E4%B8%AA%E8%B4%A8%E9%87%8F%E4%B8%BA10kg%E7%9A%84%E7%89%A9%E4%BD%93%E5%9C%A8%E6%B0%B4%E5%B9%B3%E5%9C%B0%E9%9D%A2%E4%B8%8A%E5%89%8D%E8%BF%9B.%E8%8B%A5%E7%89%A9%E4%BD%93%E5%89%8D%E8%BF%9B%E4%BA%8610m%2C%E6%8B%89%E5%8A%9BF%E5%81%9A%E7%9A%84%E5%8A%9FW1%3D+%2C%E9%87%8D2%EF%BC%8E%5Cx09%E7%94%A850N%E7%9A%84%E6%B0%B4%E5%B9%B3%E6%8B%89%E5%8A%9BF%E6%8B%89%E4%B8%80%E4%B8%AA%E8%B4%A8%E9%87%8F%E4%B8%BA10kg%E7%9A%84%E7%89%A9%E4%BD%93%E5%9C%A8%E6%B0%B4%E5%B9%B3%E5%9C%B0%E9%9D%A2%E4%B8%8A%E5%89%8D%E8%BF%9B.%E8%8B%A5%E7%89%A9%E4%BD%93%E5%89%8D%E8%BF%9B%E4%BA%8610m%2C%E6%8B%89%E5%8A%9BF%E5%81%9A%E7%9A%84)
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