本题目来源于试卷: Physics Unit2: Kinematics One Dimensional Motion，类别为 通用国际物理
[单选题]
Suppose a ball is thrown dowc98+y y t ;b ybc bbt +ss;v*knth9im/umo4x5-nward in the absencfd, *y a(p84cvwhvtm: e of air resistance. Make a statement concwfd:may4 8*,vh( ptcv erning its acceleration.
A. Its acceleration is constantly increasing.
B. Its acceleration is constant.
C. Its acceleration is constantly decreasing.
D. Its acceleration is zero.
参考答案: B
本题详细解析:
暂无
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