Answer:
54 km/h
Step-by-step explanation:
use s=½(u+v)t
600=½(x+x+12)10
600=½(2x+12)10
600=(2x+12)5
600=10x+60
540=10x
x=54 km/h
I think this is how to do it, I'm so sorry if I do it wrong!
here
it is basically a sector , use the area formula i.e.
[(theta)/360]*πr^2
The points form a curve
Jk the points are in a straight line
