Imagine a road, marked with equidistant lines that are 0.8 meters apart. A speed camera at the side of the road is flashing, taking two photographs - one now, and the second one projected 0.5 seconds into the future. In these photos, capture a car which is moving so fast that it would hint at a speed of 7.2 meters per second. The lighting conditions should indicate that the process of analyzing this speed has started. However, make sure the image contains no text.

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.