本题目来源于试卷: Newton’s law of motion，类别为 美国物理杯赛(Physics Bowl)
[单选题]
00.25: The net force on a rocket with a wxhsd p, sgg w8b3u9qvx ,y-ifb.+ m;(beight of 15000 newnyd op wg /aphfh7:1t g9(w8r)tons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 36 m/s near the surface of the Earth at takedonp:h/wwh9 fp)yg(8 gart 71off?
A. 62 seconds
B. 678seconds
C. 1.5 seconds
D. 3.8 seconds
E. 15 seconds
参考答案: C
本题详细解析:
暂无
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