L = V/F
V = L*F = 5.8 * 1.15 = 6.67 m/s.
Note: The distance between crests is
the wavelength(L).
A jetskier is moving at 8.9 m/s in the direction in which the waves on a lake are moving. Each time he passes over a crest, he feels a bump. The bumping frequency is 1.15 Hz, and the crests are separated by 5.8 m. What is the wave speed?
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