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y-x-t Graph

A pulse trave...

Question

A pulse travels on a string under tension. The transverse displacement of the string from its equilibrium position is given by y = f (x - 150 t) where x is in meters and t is in seconds. Find the velocity of a particle at t = 0, x = 1m

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Solution

$V_{p} = \frac{- δ y}{δ x} V_{w}$
$V_{p} = \frac{1 c m}{1.5 c m} \times 150 m / s$
$V_{p} = - 1 m / s (d o w n w a r d s)$

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