Question

A ball is dropped from a treetop 64 feet above the ground. How long does it take to hit the ground? (s = 16t^2)

Answer 1

it takes 2 seconds

Answer 2

Well
`s` stands for displacement, we know that displacement is
`64`. So now we have the equation
`64=16t^2`

Solve for
`t`:

`4=t^2`

`t=2`

So it took 2 seconds!