65sec
maby like a 1;24 since there older i run a 1;05 & im 12 & do track
400 Meters/1312 feet/437 Yards
The converted time for 400 meters is 42.35 seconds.
A classroom doorway is how many meters tall?
To calculate the average gradient of the river, subtract the elevation at the ocean (0 meters) from the elevation where the river originates (200 meters) and then divide by the distance traveled (400 kilometers). This gives an average gradient of 200 meters / 400 kilometers = 0.5 meters per kilometer. Thus, the average gradient of the river is 0.5 meters per kilometer.
55-65s
he shouldn't
I'm sure somewhere in the world there is a man running 400 meters at this very moment
400 meters in 43.18 seconds equates to an average speed of 20.72 miles per hour.
The total change in elevation is 200 meters and the total distance traveled is 400 kilometers. The average gradient in meters per kilometer can be calculated as the total change in elevation divided by the total distance, which is 200 meters / 400 km = 0.5 meters per kilometer.
0.5m/km Divide meters fall (200) by kilometers flowed (400).
If you are in shape, I would go for about 1:10-1:17.