Problem: Your friend is trapped on the roof of a burning building. He can jump to the next building by using the long-jump technique where he jumps 45 degrees to the horizontal. Or, he can take his chances by staying where he is in the hopes that the fire department will rescue him. You learn from the engineers that the next building is 10 m away horizontally and the roof is 3 m below the roof of the burning building. You also know that his best long jump distance is 7.9 m.
Part A: What do you advise him to do?
I need the right answer and steps of solve this problem. Thanks!