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 horizontally, releases a bomb, which explodes beforeoh)0;1 dw1k+z iy jggf8ewr+w hittinf4h;6a12i xmor ilc)h g the ground. Neglecting air resistance, the center of mass of the bomb fragments, just afmhhofri6 ci;l ax412)ter 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:
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