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 70-kg astronaut is space-walking out8wp ,7 i6jswz6pj( iitside the space capsule and is statio:1x;zgejx2. cvzdb+c:5 wb h*rv z au4nary when the tether line breaks. As a means zzg 2r4hwc e51ba;bxjucv. x*:v:d z+ of returning to the capsule he throws his 2.0-kg space hammer at a speed of 14 m/s away from the capsule. At what speed does the astronaut move toward the capsule?
A. 0.40 m/s
B. 1.5 m/s
C. 3.5 m/s
D. 5.0 m/s
参考答案: A
本题详细解析:
暂无
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