Standing waves are produced by the superposition of two waves of the form
y 1 = 15 sin (3 𝜋 t – 5x) cm;
y 2 = 15 sin (3 𝜋 t + 5x) cm
progressing along X-axis, where x is in cm and t in second. Find the amplitude of the motion at
x = 21 cm. Also find the speed of the particle at
t = 
s, x = 21 cm.
Text Solution
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14.91 cm, 33.19 cm/s
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