It depends on how fast the kid naturally runs. If they run really fast, it might be a 60 second half mile. If they run slow, it might be a 2-3 minute mile
Averaging 16.13 mph and a 55.43 second 400m which is very fast.
10 mph
24.14 km per hour for a 4-minute mile.
0.25 miles a minute, an average of 15 mph......................................
You would have to run 60 ÷ 8 = 7.5 mph.
0.75(3/4) of a mile per minute
i run a 6 minute mile but i suppose anything from 10 or 12 downwards is good
12 miles per minute - if you can maintain that speed steadily.
You must run at a speed of exactly [ 1 mile per 13.5 minutes ].To convert that to a more familiar unit:1/13.5 (mile/minute) x (60 minute/hour) = 4 4/9 mile/hour
To achieve a 10-minute mile you will have to maintain an average speed of 9.66 km per hour.
1 mile in 4 minutes = 15 miles per hour