To calculate the speed in kilometers per hour (km/h), we need to convert the distance from meters to kilometers and the time from seconds to hours.
First, let's convert the distance:
100 meters is equal to 0.1 kilometers (since 1 kilometer is 1000 meters).
Next, let's convert the time:
12 seconds is equal to 0.00333 hours (since there are 3600 seconds in an hour).
Now, we can calculate the speed:
Speed = Distance/Time
Speed = 0.1 kilometers / 0.00333 hours
Speed ≈ 30.03 km/h (rounded to two decimal places)
Therefore, 100 meters in 12 seconds is approximately equal to 30.03 km/h.