During a interval, 20 successive wave crests pass a stationary buoy on the ocean

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

Problem

During a

6.0\,\text{s}

interval, 20 successive wave crests pass a stationary buoy on the ocean. The distance between adjacent crests is measured to be

14\,\text{m}

. What is the speed of the wave? (a)

2.2\times10^{1}\,\text{m}\,\text{s}^{-1}

(b)

4.7\times10^{1}\,\text{m}\,\text{s}^{-1}

(c)

4.4\times10^{1}\,\text{m}\,\text{s}^{-1}

(d)

4.2\times10^{0}\,\text{m}\,\text{s}^{-1}