本题目来源于试卷: Physics Unit7: Linear Momentum，类别为 通用国际物理
[单选题]
A plane, flying horizontnk:ql vy,;+m th/tvy)arkh,thlvc7 r9gd 1+2blly, releases a bomb, which explodes before hitting the ground. Neglecting r19ht+kbdr l2vc ,hg7 air resistance, the center of mass of the bomb fragments, just after the explosion
A. is zero.
B. moves horizontally.
C. moves vertically.
D. moves along a parabolic path.
参考答案: D
本题详细解析:
暂无
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