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robrod75
23.06.2021 •
Mathematics
The table shows the displacement-time data for a ship relative to a shore. t (hours) 2.95 3.15 3.75 3.95 3.99 4.00 s(t) (miles) 14.95 17.61 27.23 31.01 31.80 32.00 Estimate the instantaneous velocity of the ship at t = 4 hours. A. 20.00 mi./h. B. 20.15 mi./h. C. 20.25 mi./h. D. 20.50 mi./h
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Ответ:
The relative speed of the second one is 4.5 miles per hour (8.5-4), so you've got 2/4.5 hours. That is 120/4.5 minutes or 26 minutes 40 seconds. That is, 10:26:40