Question

A penny fell off the top of the building and hit the sidewalk below 3.1 seconds later how many meters did the penny fall to the sidewalk

Answer 1

To solve this we are going to use the free distance fallen formula:
`d=0.5gt^2`
where

`d` is the distance

`g` is the gravity of Earth
`9.8m/s^2`

`t` is the time in seconds

We know from our problem that the penny fell off the top of the building and hit the sidewalk below 3.1 seconds later, so
`t=3.1`. Lets replace the value in our formula:

`d=0.5gt^2`

`d=0.5(9.8)(3.1)^2`

`d=47.089` meters

We can conclude that the penny fell a distance of 47.098 meters