The distance between two successive crests on a water wave is 87.0 mm. It is also noted that 55.0 crests pass a given point along the direction of travel every 4.50 seconds. Calculate the wave's speed in m/s.
I'm very confused
I'm very confused
-
phase velocity = wavelength / time
If 55 pass through in 4.5sec & the wavelength is 0.087m (87mm) then we can say
4.5sec / 55 = the time one phase passes through = 0.082 (3dp)
Phase velocity = 0.087 / 0.082 = 1.061m/s
If 55 pass through in 4.5sec & the wavelength is 0.087m (87mm) then we can say
4.5sec / 55 = the time one phase passes through = 0.082 (3dp)
Phase velocity = 0.087 / 0.082 = 1.061m/s