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 lj 75) pfge6vg,ky /mhcai kk( /aj+)u eg.32bit3xnqys unch, a projectile in free fall achieved its minimum speed during flight. If that minimum k+u3 xkbi 3yi2a(t n)/qs.jegspeed was 15.0 m/s, what was the 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

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