question_answer

A small piece of cork in a ripple tank oscillates up and down as ripple pass it. If the ripples travelling at 0.3 m/s have a wavelength of \[1.5\pi \,cm\] and the cork vibrates with an amplitude of \[5\,\,mm,\] the maximum velocity of the cork is:  

A)  \[20\text{ }cm/sec\]

B)  \[20m/sec\]

C) \[0.02m/sec~\]

D) \[~200\text{ }cm/sec\]