本题目来源于试卷: Simple Harmonic Motion: Parameters and Typical Relationship,类别为 美国物理杯赛(Physics Bowl)
[单选题]
94.40: A block of mass M is initia b/7aam2y7t xjlly at rest on a frictio vpahskj*9w u/z8; sw4nless floor, as shown in the acc pzjs/w9usa84;kh *vw ompanying figure. The block, attached to a massless spring with spring constant k, is initially at its equilibrium position. An arrow with mass m and velocity v is shot into the block. The arrow sticks in the block. What is the maximum compression of the spring?

A. $x= v\frac{\sqrt{m}}{k}$
B. $x= v\frac{\sqrt{k}}{m}$
C. $x= v\frac{\sqrt{M+m}}{k}$
D. $x= \frac{(M+m)v}{\sqrt{mk}}$
E. $x= \frac{mv}{\sqrt{(M+m)k}}$
参考答案: E
本题详细解析:
暂无
|