A Sinusoidal Wave Train Is Moving Along a String $\pi$ (T - X/50),
Where the Units Are SI

question 88

Multiple Choice

A sinusoidal wave train is moving along a string. The equation giving the displacement as a function of position and time is
Y(x, t) = 0.12 sin 8 $\pi$ (t - x/50) ,
Where the units are SI. For a particle at x = 5 m when t = 2.4 s, the velocity of the particle is

• A) 3.7 cm/s
• B) 27 cm/s
• C) 93 cm/s
• D) 1.6 m/s
• E) 3.0 m/s

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