so did anyone else get 4 killometers for question 8? i got my mechanics teacher to check it and he said it was right. glad i got that one in the bag, easiest 10 marks in my life. dam the momentum question, who knew a ball could weigh 4 tonnes. feel sorry for people who got 106m for question 8, people forgot to square it. luckily i got my teacher to check this too, what a legend.