如图所示在匀速转动的水平转盘上有一相对盘静止的物体则物体受到�擦力的方�是 A.沿切线方�b.沿半径指�圆心c.沿半径背离圆心d Template




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tomski如图所示在匀速转动的水平转盘上有一相对盘静止的物体则物体受到�擦力的方�是 a.沿切线方�b.沿半径指�圆心c.沿半径背离圆心d coloring