Express 15 ms^(-1) in kmh^(-1)

Explanation

To convert 15 meters per second (ms^(-1)) into kilometers per hour (kmh^(-1)), we can follow these steps:

### Step 1: Understand the conversion factors
1 kilometer (km) = 1000 meters (m)
1 hour (h) = 3600 seconds (s)

### Step 2: Convert meters to kilometers
To convert meters to kilometers, we use the conversion factor:
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