Is there away to calculate the speed of my sons pitch with
a stop watch? He throws from 60 feet 6 inches.
Use the stopwatch to measure the time it takes the ball to travel the
distance. The speed is the distance divided by the time. You may need or
want to convert some of the units: 12 inches / foot, 5280 feet / mile, 3600
seconds / hour.
Richard E. Barrans Jr., Ph.D.
PG Research Foundation, Darien, Illinois
speed = distance / time
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Update: June 2012