//Given that
Ma = 83  //in kg
Va = [6.2, 0]  //in km/h
Mb = 55  //in kg
Vb = [0, 7.8]  //in km/h

//Sample Problem 10-5a
printf("**Sample Problem 10-5a**\n")
Vf = (Ma*Va + Mb*Vb)/(Ma+Mb)
printf("The common velocity after the collision is %fm/s\n", norm(Vf))

//Sample Problem 10-5b
printf("\n**Sample Problem 10-5**\n")
printf("The velocity of center of mass is not altered due to collision")