seitas tali direntangkan dan salah satu ujungnya digetarkan dwngan amplitudo 24cm periode 1s dan cepat rambat 12cm/s. tentukan amplitudo gel syasioner ujung bebas dititik yang berjarak 8cm

GELOMBANG
• Gelombang stasioner

A = 24 cn
v = 12 cm/s
T = 1 s
x = 8 cm
As = __?

panjang gelombang
λ = v T
λ = (12 cm/s) (1 s)
λ = 12 cm

bilangan gelombang
k = 2π / λ
k = 2π / 12 m⁻¹

Amplitudo gelombang stasioner
As = 2 A cos kx
As = 2 • 24 • cos (2π/12 • 8)
As = 2 • 24 • cos 240°
As = – 24 cm ← jwb