Physics Unit7: Linear Momentum (id: c2a181d81)

本题目来源于试卷: Physics Unit7: Linear Momentum，类别为 国际高中通用物理

[单选题]
A toy rocket, of mass 0.12 kg, achieves ap.bt9 g8b7 gn+u9rlob velocity of 40 m/s aftwm/ir09fw,6 w7 lr4iolgtx j. er 3.0 s, when fg wm7r4 j/6 iorl it0wlxf.9w,ired straight up. What average thrust force does the rocket engine exert?

A. $1.2 \; N$
B. $1.6 \; N$
C. $2.8 \; N$
D. $4.4 \; N$


参考答案:  C


本题详细解析: 暂无

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