Please help me solve this physics question, I've posted it like 5 times! Would greatly appreciate it!?

Jon has a wagon full of a keg of beer and he can pull it down the street from Boundary Bay brewery with his trusty 2 meter long ideal double rope angled at 45 degrees above the horizontal road with a constant Tension of 820 N. His loaded wagon weighs 1200 N, and when he reaches a speed of 0.65 m/s, half of his double rope breaks, instantaneously cutting the tension in half. Jon worries that he may not be able to get the wagon up the hill to his house with only half the rope, so he calls Andrew for istance. It takes 5 minutes to run to help Jon. How far has Jon managed to haul the keg of beer from the brewery by the time Andrew arrives?