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A progressive wave is represented by y = 5 `sin(100pit - 2pix)` where x and y are in m and t is in s. The maximum particle velocity is

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A progressive wave is represented by y = 5 `sin(100pit - 2pix)` where x and y are in m and t is in s. The maximum particle velocity is
A. 28 cm/s
B. 32 cm/s
C. 49 cm/s
D. 112 cm/s
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Correct Answer - A
`y = 7 sin (4t - 0.02 s)`
`V_("max") = A omega`
`= 7 xx 4 = 28 cm//s`
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