本题目来源于试卷: Physics Bowl by Topic 4: Kinematics - part III Projectile Motion，类别为 美国物理杯赛(Physics Bowl)
[单选题]
16.41: A small object is launched 30°mabzwxw- 6j9p x y-. v)gj8qc2 above the horizontal 8 -ltrb t0el.p0yym+jfrom a height of 10.0 above the ground. If the initial speed of the object is 15.0 m/s, at what anglem t .0e0ytjyrl8pl +-b below the horizontal is the object moving when it reaches the ground? Ignore air resistance.
A. 36.1°
B. 39.1°
C. 43.3°
D. 50.9°
E. 68.5°
参考答案: D
本题详细解析:
暂无
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