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已知两个点和中间一个比例的点,求该点坐标
2022-06-28 12:00:00 【Unique_849997563】
实际问题:
有一个物体匀速沿点A往点B走,已知A、B坐标,AP段移动时间T1,AB段移动时间T2。
求P点坐标。如图:
解:
AB向量=坐标B - 坐标A。
R比率 =T1 / T2
AP向量=向量AB * R比率
OP向量=向量OA+向量AP
点P = 向量OP + 点O
如图:
简单的高中知识,我凭空想象,做出来不对,居然又打了一页草稿,才理清楚这个思路。
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