24(解题疑问),图示为修建高层建筑常用的塔式起重机,在起重机将质量m=5×103kg的重物竖直吊起的过程中,重物由静止开始向上做匀加速直线运动,加速度a=0.2m/s2,保持该功率直到重物做vm=1.02m/s
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![24(解题疑问),图示为修建高层建筑常用的塔式起重机,在起重机将质量m=5×103kg的重物竖直吊起的过程中,重物由静止开始向上做匀加速直线运动,加速度a=0.2m/s2,保持该功率直到重物做vm=1.02m/s](/uploads/image/z/6782357-29-7.jpg?t=24%EF%BC%88%E8%A7%A3%E9%A2%98%E7%96%91%E9%97%AE%EF%BC%89%2C%E5%9B%BE%E7%A4%BA%E4%B8%BA%E4%BF%AE%E5%BB%BA%E9%AB%98%E5%B1%82%E5%BB%BA%E7%AD%91%E5%B8%B8%E7%94%A8%E7%9A%84%E5%A1%94%E5%BC%8F%E8%B5%B7%E9%87%8D%E6%9C%BA%2C%E5%9C%A8%E8%B5%B7%E9%87%8D%E6%9C%BA%E5%B0%86%E8%B4%A8%E9%87%8Fm%3D5%C3%97103kg%E7%9A%84%E9%87%8D%E7%89%A9%E7%AB%96%E7%9B%B4%E5%90%8A%E8%B5%B7%E7%9A%84%E8%BF%87%E7%A8%8B%E4%B8%AD%2C%E9%87%8D%E7%89%A9%E7%94%B1%E9%9D%99%E6%AD%A2%E5%BC%80%E5%A7%8B%E5%90%91%E4%B8%8A%E5%81%9A%E5%8C%80%E5%8A%A0%E9%80%9F%E7%9B%B4%E7%BA%BF%E8%BF%90%E5%8A%A8%2C%E5%8A%A0%E9%80%9F%E5%BA%A6a%3D0.2m%2Fs2%2C%E4%BF%9D%E6%8C%81%E8%AF%A5%E5%8A%9F%E7%8E%87%E7%9B%B4%E5%88%B0%E9%87%8D%E7%89%A9%E5%81%9Avm%3D1.02m%2Fs)
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