Question

A wave is modeled with the function y(x,t) = (0.58m) cos((0.21rad/m)x − (0.03rad/s)t + π/3). Find the wave speed.

Round your answer to 2 decimal places.

Do not forget the unit

Answer 1

$$y(x,t) = (0.58m) \cos((0.21rad/m)x\\ − (0.03rad/s)t + π/3)$$ $$y(x,t) = y_0 \cos(kx − \omega t + \phi_0)$$

$$v=\omega/k=0.03/0.21=0.14\:\rm m/s$$