Physics

Problem

The displacement of a sound wave is given by

y(x,t)=0.02\sin(5x-300t)

, where all quantities are in SI units. What is the amplitude of the wave? a) 0.002\,\text{m} b) 0.04\,\text{m} c) 0.02\,\text{m} d) 0.2\,\text{m}