1) The illustrated pulse travels along the rope towards a metal ring slipped over a pole. It is reflected back along the rope. The rope has a density of 49 g/m. The tension in the rope is initially 5380 N. The pulse has a length l = 8.89 cm. The point A on the top is d = 2.00m from the pole. How long does it take the pulse to travel from point A to the pole and back to A? (Please see picture 1) 2) Which of the following diagrams correctly illustrates the reflected pulse? (Please see picture 2) 3) The tension is increased to 13235 N. What is the length of the pulse now? Please show full working out where possible!