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staticd
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Homework Statement
A transverse sinusiodal wave on a string has a period T= 25.0 ms and travels in the negative x direction with a speed of 30.0 m/s. At t=0, an element of the string at x=0 has a transverse position of 2.00 cm and is traveling downward with a speed of 2.00 m/s.
Homework Equations
I know that the general equation for a waveform is:
y(x,t)= Asin(kx-(omega)t+(phi))
{omega is the angular frequency and phi is the phase constant}
I also know that at t=0 and x=0
y(x,t)=.02 m --> .02=Asin(phi) --> A=.02/sin(phi)
I can also determine omega given the period:
omega=(2*pi)/.025=251.3274 rad/s
The Attempt at a Solution
Even with my relevant equations, I cannot figure out what I am supposed to do with the extra known factor, velocity. I have scrubbed the current chapter and can't find where I can use the transverse position, angular frequency and velocity in the y direction to determine a waves amplitude. What am I missing? Please help! I have so many problems to do but I just can't do another one until I figure this out! Thanks so much.