1. The problem statement, all variables and given/known data I am really confused. v = λ f doesn't that imply that speed is dependent on frequency? There is a question in my book that says: A sinusoidal wave of frequency f is traveling along a stretched string. The string is brought to rest, and a second traveling wave of frequency 2f is established on the string. (i) what is the wave speed of the second wave? 2. Relevant equations v = λ f 3. The attempt at a solution so I figured the answer would be something like: since v1=λf it follows that, if the second wave has frequency 2f v2 = λ(2f) v2 = 2 (λf) v2 = 2 (v1) but somehow the answer is: "the same as the first wave" Can someone explain this to me?