Question

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?

Answers

Henry
r= 0.8m/0.5s = 1.6 m/s.
an
It does not work
an
Did you get this question on maths watch?
an
the answer is 14.4. got full marks.
Lois
How did you get 14.4?
<3
yeah , how did u get 14.4 , and ye got this question on maths watch
ledge
to get 14.4 you need to times the 1.6 by 9.
Hazela
Why are you timesing by 9
mathgenius
u can see that there are 9 marks in between the photo1 and photo2
uhmidk
14.4, full marks.
The Cool MC
Where did u get 1.6 from?
answer boi
r= 0.8m/0.5s = 1.6 m/s
7.2 m/s
14.4
OXFORD UNIVERSITY
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
...
You need to times by 9 because that is how far the car went like :I c'mon its ez
lollypops
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
Einstein
thanks, everyone who answered the question
shoto todoroki
thanks for the answers guys
Kozume Kenma
Thanks! I had gotten 1.6m/s at first and after looking for help, i realised where i went wrong. Thank you so much.
giveon
Wait, I need the working out may u help?
LAN
Tari beh ni pudi
Thx

Related Questions