Question 611572
a ball is dropped from a cliff that is 256 feet high. The distance S (in feet) that it falls in t seconds is given by the formula S=256-16t^2. How many seconds(to tenths) will it take for the ball to hit the ground?
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When the ball hits the ground "S" will be zero.
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Solve:
256-16t^2 = 0
16t^2 = 256
t^2 = 16
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Positive solution:
t = 4 seconds
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Cheers,
Stan H.
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