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professor190 [17]
3 years ago
11

An airplane dropped a flare from a height of 1020 feet above a lake. How many

Mathematics
1 answer:
Anettt [7]3 years ago
4 0

Answer:

14.4 s

Step-by-step explanation:

if we ignore air resistance, assume the airplane was in level flight and assume gravity is 9.8 m/s²

h = ½gt²

t = √(2h/g) = √(2(1020)/9.8) = 14.42786... 14.4 s

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