//Example 6_4
clc();
clear;
//To find the recoil velocity of the gun vgf
//As we know that Momentum before = Momentum after
//((m*vb0)+(M*vg0))=((m*vbf)+(M*vgf))
// As vb0=vg0=0
printf("The recoil velocity of the gun is Vgf=-(m/M)*Vbf")