What's the time it takes a car to attain the speed of 30 m/s when accelerating from rest at 2 m/s (squared) A- 15 s
B- 2 s
C- 60 s
D- 30 s
E- none

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.