High School physics (Newton's Laws) tetherball problem

given a 450 gram tetherball on a 1.8m cord and going 4 meters per second, find out the angle and the tension on the rope. Note: I go through this video quite fast to save you time. I STRONGLY RECOMMEND YOU PAUSE AND WORK OUT PARTS FOR YOURSELF. I COULD WITHHOLD THE ANSWER, BUT ITS UP TO YOU NOT TO CHEAT YOURSELF, NOT ME. also, sorry for the shaky pen in the video! it's a side effect of speeding up the video!