Physics Bowl by Topic 2: Kinematics - part I General Motion (id: 560b29022)

本题目来源于试卷: Physics Bowl by Topic 2: Kinematics - part I General Motion，类别为 美国物理杯赛(Physics Bowl)

[单选题]
13.02:A small object is released from rest ab)6in25mt ,q bzlehk0 nd reaches 78w 844(pmal znx dwz3d6olra)c8 axithe ground in a time of $2.50\;s$. Neglect air resistance. With what speed does the object reach the ground?

A. 31.3 m/s
B. 25.0 m/s
C. 12.5 m/s
D. 10.0 m/s
E. 2.50 m/s


参考答案:  B


本题详细解析: 暂无

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