本题目来源于试卷: Momentum and Energy，类别为 美国物理杯赛(Physics Bowl)
[单选题]
10.50: An object of mass m is initially at rest. After this obj5x j0 m3 bga,h*(jl i,u3bucntect is accelt8g /gh7k+ t.myw ieg,3pn/ kjerate 7 .ypgk,gt/tghem 8i kn+w3/jd to a speed of $2.4\times\:10^8\:m/s$ , it collides with and sticks to a second object of mass m at rest. Immediately after
the collision, what is the common speed of the two masses (in unit of m/s)?
A. $2.25\times\:10^8$
B. $1.80\times\:10^8$
C. $1.66\times\:10^8$
D. $1.5\times\:10^8$
E. $1.20\times\:10^8$
参考答案: D
本题详细解析:
暂无
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