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]
05.02: A pebble is dc ,ixsav6 c6 t1ssw1:yropped f 6h,zu0tp4:jct vsl w:v97czm rom a high vertical cliff. The collision of the pebble with the ground below is seen 1.50 seconds after the pez6vv s9u m w4,lh:ttz7c jp0c:bble is dropped. With what speed did the pebble hit the ground? Ignore air resistance.
A. 10 m/s
B. 15 m/s
C. 48.6 m/s
D. 100.4 m/s
E. 343 m/s
参考答案: B
本题详细解析:
暂无
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