A speed camera takes two photographs of a car.Photo 2 was taken 0.5 seconds after Photo 1.Marks on the road are 0.8 meters apart.Calculate the average speed of the car in m/s?
7.2 m/s but when i submit answer i get 2 marks only not full 3 marks what am I doing wrong and what is the full answer?
Did you get this question on maths watch?
the answer is 14.4. got full marks.
How did you get 14.4?
to get 14.4 you need to times the 1.6 by 9.
yeah , how did u get 14.4 , and ye got this question on maths watch
It does not work
r= 0.8m/0.5s = 1.6 m/s
7.2 m/s
14.4
In every problem solving, equations, algebra, ratio; you should think mathematically. first what you would do for this question is.
0.8/0.5 = 1.6m/s
Im not going to give the answers because there are many students who doesn't care in what method there doing therefore all you people reading my comment think carefully and reply when you really don't understand. THX
Why are you timesing by 9
14.4, full marks.
u can see that there are 9 marks in between the photo1 and photo2
You need to times by 9 because that is how far the car went like :I c'mon its ez
that really helpful
14.4
i kept on getting 7.2 and getting 2 marks
thanks
by the way yes i did get it on mathswatch