本题目来源于试卷: Physics Unit6: Work and Energy，类别为 国际高中通用物理
[单选题]
A toy rocket, weighing 10 N, blasts straigh bgg12m mk, 2i(whbirj 915pie8 hclw,t up from ground leve6.; 3 h8djnohyp6w 6dsrxc; fsl with a kinetic energy of 40 J. At the exact top of its trajectory, its total 6d h.fcy6 s sxrpdw3nh6 8oj;;mechanical energy is 140 J. To what vertical height does it rise?
A. $1.0 \; m$
B. $10 \; m$
C. $14 \; m$
D. $24 \; m$
参考答案: B
本题详细解析:
暂无
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