Question

the equation y= -16t^2+120 can be used to represent the fridge height above the ground where ti represents time in seconds after she threw the Apple how long does it take the apple to hit the ground running your

Answer 1

Answer:

It takes the apple 2.738... seconds to hit the ground.

Step-by-step explanation:

The given equation is:    $y= -16t^2 +120$

Here,  $y$ represents the fridge height of the apple above the ground after $t$ seconds.

When the apple hit the ground, then it's height will become 0.

So, plugging $y=0$ into the above equation, we will get.......

$0=-16t^2+120\\ \\ 16t^2= 120\\ \\ t^2= \frac{120}{16}=7.5\\ \\ t=\sqrt{7.5}=2.738...$

Thus, it takes the apple 2.738... seconds to hit the ground.