Imagine you tie an elastic rope to a wall and hold it under tension. You then swing your arm up and down twice to produce two wave pulses. The two pulses are separated by a distance s = 0.65 m, as illustrated in the figure. Both pulses are symmetrical and completely identical. They travel at a speed of v = 1.7 m/s. If the second (left) pulse is D = 6.3 m away from the wall at time t = 0s, at what time will the rope be (temporarily) straight again for the first time? If you do not think this is possible, put 99 as your answer. Otherwise give your time in seconds with two decimal places