I'm a bit confused. Is it saying to calculate the distance from the braking part only? Or the whole distance? Because then t would be different.
You don't use that formula because that gives you the displacement and not the distance traveled. Displacement is how much it has moved from its starting position. If I walk a full square of side length 1m then my distance traveled is 4m while my displacement is 0m as I am back where I started.
If you draw a time-velocity graph you can easily work out the distance traveled as it is the area under the graph. Also, it is refering to the full time of motion, so for the full 12 seconds.
You don't use that formula because that gives you the displacement and not the distance traveled. Displacement is how much it has moved from its starting position. If I walk a full square of side length 1m then my distance traveled is 4m while my displacement is 0m as I am back where I started.
If you draw a time-velocity graph you can easily work out the distance traveled as it is the area under the graph. Also, it is refering to the full time of motion, so for the full 12 seconds.
ahhh.
My attempt:
I'm not the best at understanding and drawing graphs but does it look something like this?
The answer I got was 202m. What a weird answer, I defo got this wrong :/