問題詳情

(10)A ladder (梯）10 feet long rests against a vertical wall (斜靠於一垂直牆面).of the bottom (底）of the ladder slides away (滑開）from the wall at a rate of 1 fl/sec, how fast is the top of the ladder sliding down the wall when the bottom of the ladder is 6ft from the wall?

參考答案

答案：A
難度：簡單0.884041
統計：A(1479),B(84),C(11),D(27),E(0) #
個人：尚未作答書單：特殊教育法及施行細則的重要修正、資賦優異學生之鑑定評量、充實三合模式

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