# Calculating the fundamental frequency of a travelling wave

No idea what to do here, really tough question, can i get some assistance please?

## Homework Statement

The equation of a travelling transverse wave is
y=2.0sin 2π(x/30 - t/0.01)

where x and y are in centimetres and t is in seconds.

When attached at both ends, a string under a tension of 480 N and having a linear density of 1.20 x 10-2 kg/m resonates at a frequency of 150 Hz. The next highest frequency at which the string resonates is 200 Hz.

(i) What is the fundamental frequency of vibration for this string under this tension?

(ii) What is the string’s length?

BruceW
Homework Helper
The equation of a travelling transverse wave is
y=2.0sin 2π(x/30 - t/0.01)

where x and y are in centimetres and t is in seconds.

What does this have to do with the rest of the question??

Also, for the question, are you supposed to derive the result from first principles, or just put in the values to the equation? Since you haven't written the equation for this situation, I'm guessing you're supposed to derive it from first principles... Have you been taught how to do that in class?

sophiecentaur