To convert a velocity of 2 m/s to km/hr, you can use the following steps:
Step 1: Convert meters to kilometers. Since there are 1000 meters in a kilometer, divide the velocity by 1000 to convert it to kilometers per second. 2 m/s = 2/1000 km/s = 0.002 km/s
Step 2: Convert seconds to hours. Since there are 3600 seconds in an hour, multiply the velocity by 3600 to convert it to kilometers per hour. 0.002 km/s * 3600 s/hr = 7.2 km/hr
Therefore, a velocity of 2 m/s is equivalent to 7.2 km/hr.