Final answer:
A yard is a standard measurement on a football field, which facilitates consistent delineation of distance and thus gameplay. In the given scenario, Folk's field goal kick from the 39-yard line, plus the end zone depth, totals a 49-yard attempt.
Step-by-step explanation:
The subject in question relates to understanding measurements within the context of an American football game. Fans of the sport measure distances in yards on the football field, where achieving a certain number of yards results in a first down.
The modern standard definiton of a yard is well-established, unlike historical variants that could change with the length of a king's arm.
For the scenario given in the question, Nick Folk would need to make a field goal to win the game. Since the ball is kicked from the 39-yard line and the goal posts are 10 yards deep into the end zone, the total distance for the field goal is 49 yards.
Given that a yard is 3 feet, Folk would need to make a 147-foot field goal to win the game for the Jets, assuming the kick has enough altitude to pass over the cross bar which is 3 yards (9 feet) above the ground.