Center of Mass , Momentum and Collision: Practice Problem & Solution

Solution Explained:

To solve this problem, we apply the core principles of Center of Mass , Momentum and Collision. Understanding the underlying formula is key to arriving at the correct answer below:

Concept: Definition and properties of center of mass. Formula: $\vec{R}_{cm} = \frac{\sum m_i \vec{r}_i}{\sum m_i}$.

Solution: Center of mass depends only on masses and positions, independent of internal or external forces acting on particles.