Question: User: Visual Prompt for AI Video Generator: Prompt: An interactive digital step-by-step problem solver animation[cite: 15]. Step 1 highlights the peak at $y = 1.0~m$ on the graph to show Amplitude = $1.0~m$[cite: 15]. Step 2 traces one full wave cycle from $x = 0$ to $x = 4.0~m$ on the y-x graph to show Wavelength $\lambda = 4.0~m$[cite: 15]. Step 3 tracks time from $0.12~s$ to $0.60~s$ on the y-t graph, calculating Period $T = 0.48~s$[cite: 15]. Clear annotations and clean grid lines[cite: 15]. English Voiceover & Text: Voiceover: "Let's solve the worked example step by step[cite: 15]. From the displacement-position graph, the peak reaches 1.0 meter for amplitude, and a full cycle spans 4.0 meters for wavelength[cite: 15]. From the displacement-time graph, a full cycle spans from 0.12 to 0.60 seconds, giving a period of 0.48 seconds[cite: 15]."