A ski gondola is connected to the top of a hill by a steel cable of length 580 m and diameter 1.5 cm. As the gondola comes to the end of its run, it bumps into the terminal and sends a wave pulse along the cable. It is observed that it took 19 s for the pulse to travel the length of the cable and then return.
(a) What is the speed of the pulse?
(b) What is the tension in the cable?
I have no idea.
The Attempt at a Solution
I don't even know where to start. I don't even see how you can calculate tension with the information. Any help is appreciated. Thank you!