Question 905118
If a log travels 50 feet in 20 seconds.
50/20 = 2.5 ft/sec
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 After 15 seconds it has traveled 40 feet.
That doesn't fit.
d = r*t
d = 2.5 ft/sec * 15 = 37.5 feet, not 40 feet.
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 how many feet will it travel in the next 5 seconds?
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idk.  Is this 1 problem, or 3?