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° aq/ e x7+m o15cmh2jhqabove the horizontal from5k40o-uwt2r , qelrt h a height of 10.0 above the ground. If thwh540tqu,erolk -2 tre initial speed of the object is 15.0 m/s, at what angle 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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