# math

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The Grand Canyon

The time t (in seconds)that it takes for an object to fall a distance of s feet is given by the formula

In some places, The Grand Canyon is one mile (5,280 feet) deep. How long would it take a stone dropped over the edge of the canyon to hit bottom?

• math -

do you have a calculator?
find (√5280)/4

other option, just enter 5280^.5/4 into Google.

• math -

i got

(5 280^.5) / 4 = 18.1659021

it the answer be 18 seconds?

• math -

i got
(5 280^.5) / 4 = 18.1659021

thanks

• math -

(5 280^.5) / 4 = 18.1659021

• math -

i got 18.1659021

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