同学们学过估测爬楼时的功率，如果要估测宝宝爬楼时克服重力做功的功率，你认为要测量下列哪些物理量 ①宝宝的质量②宝宝的身高③爬楼的长度④爬楼的高度⑤爬楼的时间．_刷题宝

题干

同学们学过估测爬楼时的功率，如果要估测宝宝爬楼时克服重力做功的功率，你认为要测量下列哪些物理量（）

①宝宝的质量②宝宝的身高③爬楼的长度④爬楼的高度⑤爬楼的时间．

A：③④⑤

B：①②⑤

C：②④⑤

D：①④⑤

上一题下一题 0.0难度选择题更新时间:2018-12-30 10:01:55

答案(点此获取答案解析）

D

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