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. Here's the calculation:
Distance: 100 meters = 0.1 kilometers (since 1 kilometer = 1000 meters)
Time: 10 seconds = 10/3600 hours (since 1 hour = 3600 seconds)
Now, we can calculate the speed:
Speed = Distance/Time = 0.1 kilometers / (10/3600) hours = 0.1 kilometers * (3600/10) hours = 0.1 * 3600 / 10 kilometers per hour = 36 kilometers per hour
Therefore, the lady's speed is 36 km/h.