英语翻译1 the change in position of a body relative to others is
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英语翻译
1 the change in position of a body relative to others is called mechanical motion
2 the point with mass an object is replaced by is called a mass point
3when we describe the motion of an object,any other object chosen as a reference is called a reference system
4 displacement is an objects total change in pasition
5 distance has only magnitude while displacement has both magnitude and drection
1 the change in position of a body relative to others is called mechanical motion
2 the point with mass an object is replaced by is called a mass point
3when we describe the motion of an object,any other object chosen as a reference is called a reference system
4 displacement is an objects total change in pasition
5 distance has only magnitude while displacement has both magnitude and drection
1:机械运动是相对于其他物体的运动
2:以有质量的点代替了物体就是质点
3:当描述物体运动时,被选作参考的物体就是参考系
4:位移就是物体改变了他的位置
5:长度只有大小,而位移既有大小又有方向
2:以有质量的点代替了物体就是质点
3:当描述物体运动时,被选作参考的物体就是参考系
4:位移就是物体改变了他的位置
5:长度只有大小,而位移既有大小又有方向
英语翻译1 the change in position of a body relative to others is
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