Aball is dropped from the top of a building that is 250 feet tall. the height h of the ball in feet after t seconds is modeled by the function h=-16t^2+250. round to the nearest tenth if necessary. a. how long will it take for the ball to reach the ground? show your work

The ball reach the ground at t=4 sec

Step-by-step explanation:

Let

h-----> the height of the ball

t-----> the time in seconds

we have

we know that

When the ball reach the ground h=0 (x-intercept of the function)

so

For h=0 ind the value of t

The solution is t=4 seconds  ( the value of t can not be negative)