Mathematics: Abullet is fired straight up from a bb gun with initial velocity 1120 ft./s at an initial height of 8 feet. use the formula h=-16t^2 +v0 t+8 to determine how many seconds it will take for the bullet to hit the ground. that is, when will h=0 ? round your answer to the nearest whole number

Vertical angles is an X but that s how you tell if they re vertical angles...

Abullet is fired straight up from a bb gun with

allisonhall0925

11.03.2022

Bullet will hit the ground after 70 seconds.

Step-by-step explanation:

A bullet is fired straight up from a BB gun with initial velocity 1120 ft/s at an initial height of 8 ft.

$\text{Formula or Model of height }h(t)=-16t^2+1120t+8$

We need to find time when bullet hit the ground.

As we know when bullet hit the ground height would be 0

So, we set h=0 and solve for t .

0=-16t^2+1120t+8

Using quadratic formula

$t=\dfrac{-1120\pm \sqrt{(1120)^2-4(-16)(8)}}{2(-16)}$

$t=70\text{ seconds}$

Thus, Bullet will hit the ground after 70 seconds.

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