It will take 4.3 seconds for the ball to hit the ground
Given the eqation of the height at which the object dropped expressed as
h(t) = 300 - 16t²
The object will hit the ground at when h(t) = 0
Substitute h(t) = 0 into the expression to have;
0 = 300 - 16t²
16t² = 300
t² = 300/16
t² = 18.75
t = 4.33sec
This shows that it will take 4.3 seconds for the ball to hit the ground
Learn more here: https://brainly.com/question/25305499