本题目来源于试卷: Impulse and momentum，类别为 美国物理杯赛(Physics Bowl)
[单选题]
10.32: A rubber ball of masrbve -p 8:hpi61fao-lt8 lky .s 2.0 kg falling straight do+3i 9j +7psoia w.7 i5ogryzrpwnward hits the ground with a speed of 0.90 m/s and then rebounds straight upward with a speed of 0.60 m/s. The collision time of the ball with the ground is+iz j5a37prsr y 9i +.7gipowo 0.25 s. Treat g = 10 N/kg.
What is the magnitude of the average acceleration (in units of $m/s^{2}$ ) of the ball while it is in contact with the ground?
A. 1.2
B. 6.0
C. 10.0
D. 13.0
E. 16.0
参考答案: B
本题详细解析:
暂无
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