如图站在�前运动的汽车上的人用手推车车对手的力为f车对脚的静�擦力为f′下列说法正确的是 A．车匀速运动时f和f′所做的总功为零 B Sketch Coloring Page

如图站在�前运动的汽车上的人用手推车车对手的力为f车对脚的静�擦力为f′下列说法正确的是 A．车匀速运动时f和f′所做的总功为零 B Template

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tomski如图站在�前运动的汽车上的人用手推车车对手的力为f车对脚的静�擦力为f′下列说法正确的是 a．车匀速运动时f和f′所做的总功为零 b coloring

作图与读数题1如图1弹簧测力计所示拉力F的大小为16N．2如图2汽车匀速直线运动请在图中画出车所受平衡力的示意图所受的力．题目和 sketch template

31．坐在汽车里的乘客司机和路旁的孩子们有如图9 4 所示的对话以下分析正确的是 A．孩子们认为汽车前进得快是以汽车为参照物的 sketch template

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