47 mph
About 60 to high 60`s /67,68,69
It shoud be 60-75 miles per hour. A good 13 year old should be in the low to mid 50's. An average 13 year old is in the mid 40's.
the average typing speed for a 12 year old girl is about 50 words per minute.
50 miles per hour or 55 miles per hour for a good pitcher throwing a fastball
Speed doing what? Running? Mathematical sums?
55-65
3 miles per hour.
Im 13 and i ran it in 10.47 seconds
well it depends if your a pitcher or if you play the field if your a pitcher a good speed is from 75 to 85 if your a fielder a good pitch speed is from 65 to 75 as long as you got a good changeup to back it up
Typically if your a decent pitcher kids at 14 clock out at 60-70 but some rare breeds can pitch higher then that. If you want to make your pitch faster do some long toss and have good athletic mechanics.
35 mph would be about average.
Average about 10-15 mph