328 fps
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44 feet/second (1 mile/5280 feet)(3600 seconds/1 hour) = 30 mph =======
100 yards is 300 feet 5 feet per second at 300 feet it would take 60 seconds or 1 minute
It will travel ten feet.
If a ball were to double in speed every second for ten seconds, then it would travel 1 + 2 + 4 + 8 + 16 + 32 + 64 + 128 + 256 + 512 = 1023 feet in ten seconds. This is equal to 210 - 1 feet.
55 mph is 55 x 5280 ie 290400 feet per hour This is 290400/3600 ie 802/3 feet per second 100 feet takes 100/802/3 ie just under 1¼ seconds