i cant figure this out and what its called

What is your question?

i recently got in an accident and it pushed back the radiator and the fan. But everything else is fine exept the belt at the bottom left ,its hard to explain but easy to show anyways it keeps getting red hot while the truck is on and continues to get hotter how do i fix it

What makes this problem better or worse?

when the truck is on

How long has your 2002 Chevrolet Avalanche 1500 had this problem?

since the wreck