Write the equation of a progressive wave propagating along the positive x-direction, whose amplitude is 5cm, frequency 250Hz and velocity 500 m`//` s.

Explanation

To find the equation of a progressive wave propagating along the positive x-direction with the given parameters, we will follow these steps:

### Step 1: Identify the given parameters
- Amplitude (A) = 5 cm = 0.05 m (convert to meters)
- Frequency (f) = 250 Hz
- Velocity (v) = 500 m/s

### Step 2: Calculate the time period (T)
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