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How would u answer this question?
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Mar 11, 2018
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Mathematics
middle-school
Alcaro
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At time 5 seconds distance is 0.8(5)^2 = 20 m
after 10 seconds it is 0.8(10)^2 = 80 m
average speed between 5 and 10s = (80-20) / (10-5) = 12 m / s answer
Fret
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Mar 16, 2018
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