What is the reason that causes viewing obstacle and less in sloar radiation?​

In addition to the sun's angle, atmospheric conditions can affect radiation levels. Cloud cover, air pollution and the hole in the ozone layer all alter the amount of solar radiation that can reach the surface. These factors all cause typical radiation levels to differ.

hope it helps

prolly a beacuse the momentuem the car has increases while going down hill

i really dont know but i will try okay.

so i think u would just add all them up and get your answer..