作业帮英语翻译Flying a kite A girl flies a kite at a height of 300 ft,the wind carrying the kite horizontally away from her at a rate of 25 ft /sec.How fast must she let out the string when the kite is 500 ft away from her?
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英语翻译Flying a kite A girl flies a kite at a height of 300 ft,the wind carrying the kite horizontally away from her at a rate of 25 ft /sec.How fast must she let out the string when the kite is 500 ft away from her?
英语翻译
Flying a kite A girl flies a kite at a height of 300 ft,the wind carrying the kite horizontally away from her at a rate of 25 ft /sec.How fast must she let out the string when the kite is 500 ft away from her?
英语翻译Flying a kite A girl flies a kite at a height of 300 ft,the wind carrying the kite horizontally away from her at a rate of 25 ft /sec.How fast must she let out the string when the kite is 500 ft away from her?
风筝的垂直高度是300米
风筝的水平速度是25英尺每秒
凯特到风筝的距离是500米
那么凯特放线的速度有多快呢?
楼主只要画个三角形答案就出来了,
凯特放线的速度应该是
25×5╱4＝31.25英尺每秒
Flying a kite A girl flies a kite at a height of 300 ft, the wind carrying the kite horizontally away from her at a rate of 25 ft /sec. How fast must she let out the string when the kite is 500 ft awa...
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Flying a kite A girl flies a kite at a height of 300 ft, the wind carrying the kite horizontally away from her at a rate of 25 ft /sec. How fast must she let out the string when the kite is 500 ft away from her?
意思是: 放风筝放风筝的女孩在300英尺的高度,风带着风筝水平远离她的速率25英尺/秒。如何快速必须她让字符串当风筝是500英尺远离她吗?
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放风筝：一个女孩将风筝放至300ft高空，风带着风筝以25ft/s的水平速度远离她。则当风筝放至500ft高空时，她需要放多少线？
勾股定理。
放风筝时，一女孩的风筝高为300英尺，风以每秒25英尺的速度把风筝延水平方向吹离女孩，问：当风筝与她的横向距离为500英尺时，她的放线速度是多少？