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It would take 2.75 seconds for the ball to travel 420 feet at 104 mph.

5280 mile = 1 mile

420 feet = 0.0795 miles

0.0795 mi / 104 mi / hr = 0.000764

hr 1 hr = 3600 s

0.000764 hr = 2.75 s

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9y ago

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