本题目来源于试卷: Physics Unit3: Kiematics Motion in Two Dimension & Vectors，类别为 通用国际物理
[单选题]
A soccer ball is kicked with a veloce)n8m b)2zvmm/ ( bq 2a)jzmzcity of 25 m/:,z 5a tdvqmlofqb+py:l*acn3* 2 mw *s at an angle of $45^{\circ}$ above the horizontal. What is the vertical component of its acceleration as it travels along its trajectory?
A. $9.80 \; m/s^2$ downward
B. $9.80 \; m/s^2 \times sin(45^{\circ})$ downward
C. $9.80 \; m/s^2 \times sin(45^{\circ})$ upward
D. $9.80 \; m/s^2$ upward
参考答案: A
本题详细解析:
暂无
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