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 masjgg/c en-t x h2i8i+.js 0.12 kg, achieves a velocity of 40 m/s afterwnv h8*98j vqdvti0io2*)n jg 3.0 s, when fired straight up. ) 9jhiv w *tg2on8d*0ivq jnv8What 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

微信扫一扫，分享更方便