Final answer:
Adam van Koeverden rowed with greater speed in the 500 m race.
Step-by-step explanation:
In order to determine in which race Adam van Koeverden rowed with greater speed, we need to compare the average speed in each race.
To calculate the average speed, we divide the distance of the race by the time taken.
For the 500 m race:
Average speed = distance / time
Average speed = 500 m / 97.9 s = 5.112 m/s
For the 1000 m race:
Average speed = distance / time
Average speed = 1000 m / 208.2 s = 4.807 m/s
Therefore, Adam van Koeverden rowed with greater speed in the 500 m race as his average speed was higher.