Physics Bowl by Topic 3: Kinematics - part II Uniformly Accelerated Motion (id:

本题目来源于试卷: Physics Bowl by Topic 3: Kinematics - part II Uniformly Accelerated Motion，类别为 美国物理杯赛(Physics Bowl)

[单选题]
16.21: At 1.94 s after launch, a gdy)a25rw (sl /bwb2uprojec+-keiiiqih6b ; 7kpb/tile in free fall achieved its minimum speed during flight. If that minimum speed was 15.0 m/s, what was thbi;/-bi+k ih q7p6eik e projectile’s initial angle of launch from the horizontal?

A. 82.6°
B. 52.3°
C. 50.6°
D. 39.4°
E. 37.7°


参考答案:  B


本题详细解析: 暂无

微信扫一扫，分享更方便