Example 3 ( JQ and Matthias )

a) Wavelength = 18cm
v=90/1.52
v=59.2cm/s
=0.592m/s

b) We can change the speed be altering the tension of the rope.

When the tension is high, the time taken for the wave to move through the rope is 1:69 seconds



When the tension is lower, the time taken for the wave to move through the rope is 9:86 seconds