1请画出图1中在斜面上的物体a所受的重力和对接触面的压力示意图2一个大人用500n水平�右的力推箱子箱子�右做匀速直线运动请画出 Template




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tomski1请画出图1中在斜面上的物体a所受的重力和对接触面的压力示意图2一个大人用500n水平�右的力推箱子箱子�右做匀速直线运动请画出 coloring