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Help with this equation?

I have an equation y=10sin(0.1x-20t) that describes an ocean wave, x being distance and t being time.

I think this means the amplitude of the wave is 10, right? But how do i work out the frequency, wavelength and velocity of the wave from this equation?

thanks

Reply 1

Joinedup

Original post by katievickers

should be pretty obvious that the output of that function is going to be a sine wave with amplitude controlled by A.
If you hold the displacement variable constant how much do you need to change the time variable by to advance by 1 cycle? If you hold the time variable constant how much do you need to change the displacement by to advance by one cycle?
Once you've got period and wavelength you can calculate velocity from those results.