Question

Use the formula below to solve the given problem. In the formula, d

represents the distance an object falls, in meters, and t represents the time
that an object falls, in seconds. Do not include units in your answer.
A rock dropped down a well takes 3 seconds to fall to the bottom of the well.
What is the depth of the well?
√d=t•√49
Answer here

Answer 1

`d = 441`

Explanation:

We know that
`d = 49t^2`.

We also know that it takes 3 seconds to reach the bottom of the well, meaning that if we substituted
`t = 3s` in the formula, we'd get the height of the well.

`d = 49 * 3^2 \to 49 * 9 \to 441`