My teacher kinda confused me today and i'm rather lost.
A tight end can runt he 100-yard dash in 12 seconds. A defensive back can do it in 10 seconds. The TE catches a pass at his own 20 yard line with the DB at the 15-yard line. If no other players are nearby, at what yard line will the DB catch up to the TE.
at time t=0, the DB is 5 yards behind the tight end.