The Grand Canyon skywalk is 4000 ft above the Colorado River. How long will it take a stone to fall from the skywalk to the river?

sibuzwaW
2020-11-08
Answered

Use $s=16t\xb2$

The Grand Canyon skywalk is 4000 ft above the Colorado River. How long will it take a stone to fall from the skywalk to the river?

The Grand Canyon skywalk is 4000 ft above the Colorado River. How long will it take a stone to fall from the skywalk to the river?

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insonsipthinye

Answered 2020-11-09
Author has **83** answers

Using the given formula, substitute s=4000 and solve for t:
$4000=16{t}^{2}$

Divide both sides by 16:

$250={t}^{2}$

Take the square root of both sides:

$\sqrt{250}={t}^{2}$

t~15.8 seconds.

Divide both sides by 16:

Take the square root of both sides:

t~15.8 seconds.

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