The wave described by (SI units) moves

PHYSICS · Single correct · A Level · Physics · Waves · Waves

Problem

The wave described by

y=0.02\sin(3x+6t)

(SI units) moves (a) along the

+x

-direction with speed

2\,\text{m\,s}^{-1}

(b) along the

-x

-direction with speed

2\,\text{m\,s}^{-1}

-x

-direction with speed

0.5\,\text{m\,s}^{-1}

(d) along the

+x

-direction with speed

0.5\,\text{m\,s}^{-1}