A car travels 35 km due north and then 20 km in a direction 60° north of west. Find the direction of the car's resultant displacement with +X-axis *

a and c

c is 100% but i am confused in a

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.