Question

A construction worker drops a hammer while building the Grand Canyon skywalk 4,000ft above the Colorado River. Use the formula t=h‾√4 to find how many seconds it takes for the hammer to reach the river. Round your answer to the nearest tenth of a second.

Answer 1

The hammer reaches the river after 15.8 seconds.

Explanation:

The formula to find for how long it takes for the hammer to reach the ground is given by:

`t = (√(h))/(4)`

In which h is the initial height.

A construction worker drops a hammer while building the Grand Canyon skywalk 4,000ft above the Colorado River.

This means that
`h = 4000`.

So

`t = (√(4000))/(4)`

`t^2 = (4000)/(16)`

`t^2 = 250`

`t = √(250)`

`t = 15.8`

The hammer reaches the river after 15.8 seconds.