本题目来源于试卷: Physics Unit7: Linear Momentum，类别为 通用国际物理
[单选题]
Two astronauts, of massb icd gmy:ai 6ar4(5yb e-w;3kes q r 7 k 7nxqohxuup e0z6r3ziq+i4rii-d.;*3 s60 kg and 80 kg, are initially at rest in outer space. They push each other apart. What is their separation after the likn.*p 7h3r6s3zequz i-4qd+r7 ioxquii0;x rghter astronaut has moved 12 m?
A. $15 \; m$
B. $18 \; m$
C. $21 \; m$
D. $24 \; m$
参考答案: C
本题详细解析:
暂无
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