Question

the formula s=16t^(2)is used to approximare the distance s, in feet, that an object falls freely from rest in t seconds. The height is 1245 feet. how long would it take for an object to fall from the top

Answer 1

You want to see how long it will take an object to fall 1245 feet down to the ground. These means its position s must be 1245. By setting the equation equal to this value, we get:

`1245 = 16t^2`

Now, we have to solve for t. First, divide both side by 16, getting:

`1245/16 = 77.8125 = t^2` Now taking the square root of both sides, we get:

`√(77.8125) = 8.8211` seconds.