The Equation That Gives the Particle Displacement of a Medium $\pi$

question 82

Multiple Choice

The equation that gives the particle displacement of a medium in which there is a simple harmonic progressive wave is
Y(x, t) = (2/ $\pi$ ) sin $\pi$ (x - 4t) ,
Where the units are SI. At t = 2 s, the velocity of a particle at x = 10 m is

• A) 0
• B) 2 m/s
• C) 4/\(\pi\) m/s
• D) 4 m/s
• E) 8 m/s

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