Juan hits a baseball. The equation #h=-16t^2+120t# models the height h, in feet, of the ball after t seconds. How long is the ball in the air?
1 Answer
Jul 15, 2017
When the ball returns to ground level,
This is a quadratic equation we can solve to find the roots
Explanation:
For a quadratic in the form
We know:
For
So:
Therefore: