Show that in an elastic collision between two objects of inertias \(m_{1}\) and \(m_{2}\), with initial \(x\) components of velocity \(v_{1 \mathrm{i}}>0\) and \(v_{2 \mathrm{i}}=0\), the final \(x\) components of velocity are

Discuss the cases \(m_{1} \ll m_{2}, m_{1}=m_{2}\), and \(m_{1} \gg m_{2}\). Using everyday objects, give an example of each of these three cases. 

V1x,f V2x.f 112 m + my 2m my + m. +2