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a rock falls from tower that is 416ft high. As it is falling, its height is given by the formula h=416-16ft?

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  • a rock falls from tower that is 416ft high. As it is falling, its height is given by the formula h=416-16ft?


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Answer #1 | 19/12 2013 07:50
416 - 16x = 0 416 = 16x 26 = x
Answer #2 | 19/12 2013 17:25
h = 416 - 16t^2 0 = 416 - 16t^2 16t^2 = 416 t^2 = 26 t = √26 = 5.099 seconds.

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