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關注：1
2013-05-23 12:21
求翻譯：身高為L的人站在燈的正下方，燈離地面高h，人以水平速度v勻速運動，人的頭頂的影子做什么運動？速度為多少？是什么意思？ 待解決
 懸賞分：1
- 離問題結束還有
身高為L的人站在燈的正下方，燈離地面高h，人以水平速度v勻速運動，人的頭頂的影子做什么運動？速度為多少？
問題補充： |
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2013-05-23 12:21:38
Height L of people standing beneath the lamp, lights high above the ground h, were uniform motion in horizontal velocity v, the head of the shadow people do sport? How much speed?
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2013-05-23 12:23:18
The height of the lamp L slant from the ground, and the lamp high speed v h, who is still in a level as soon as possible, and movement of people who do what the shadow overhead movement? For speed?
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2013-05-23 12:24:58
The height is the L person stands in the lamp underneath, does the lamp to ground high h, the human by the level speed v uniform motion, what movement human's top of the head shadow make? How many is the speed?
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2013-05-23 12:26:38
L tall man standing directly below lights, lights off the ground higher h, one horizontal velocity v uniform motion, human head shadow of what sports do? Speed is how much?
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2013-05-23 12:28:18
Stands for l standing directly below the lamp, lamp above the ground higher h, one horizontal velocity v uniform motion, who heads the shadows of what kind of exercises do? Speed is how much?
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