//Given that
velocity = 70  //in km/h
distance_covered = 8.4   //in km
next_time = 30  //in min
next_walk = 2  //in km

//Sample Problem 2-1a
printf("**Sample Problem 2-1a**\n")
overall_displacement = distance_covered + next_walk
printf("Overall displacement from begining of the drive to the station is %f km", overall_displacement)