Question

how air friction increases velocity of satellite??

Answer 1

satellites do indeed speed up as atmospheric drag acts on them. It all has to do with energy conservation.

So you have a satellite zipping along in Low Earth Orbit. It’s almost a vacuum but not quite. There’s a few ballistic air molecules flying around and hitting the spacecraft creating drag.

Answer 2

hey dude....
ur answer is here. ..!!!!!

i hope ,,,It doesn't. because Friction slows satellites down, which is why they eventually de-orbit and burn up if they don't use fuel to boost their velocity (and therefore their orbit)..

thanks.....!!!!!