The displacement of a transverse wave travelling along a rope is described by
y(x,t)=0.05sin(40x−60t),
where x is measured in centimetres and t in milliseconds.
Answer the following questions:
(i) Rewrite the wave equation so that x is expressed in metres and t in seconds while keeping the numerical coefficient of the sine argument correct.
(ii) From your rewritten equation, obtain the numerical values of the wavelength, frequency and wave speed in SI units.