A mass $M$ moving with a certain speed $V$ collides elastically with another stationary mass $m$. After the collision, the masses $M$ and $m$ move with speeds $V^{\prime}$ and $v$, respectively. All motion is in one dimension. Then,
A mass $M$ moving with a certain speed $V$ collides elastically with another stationary mass $m$. After the collision, the masses $M$ and $m$ move with speeds $V^{\prime}$ and $v$, respectively. All motion is in one dimension. Then,
- [KVPY 2019]
- A
$V=V^{\prime}+v$
- B
$V^{\prime}=V+v$
- C
$V^{\prime}=\frac{(V+v)}{2}$
- D
$v=V+V^{\prime}$
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