## kiamonstaa 2 years ago solve using the quadratic formula H(t)= -16t+25+0

1. satellite73

does it really say $$+0$$ ??

2. chemENGINEER

this is first order, so i would use the quadratic formula myself....

3. satellite73

i think something is missing from this question it is not a quadratic as it is written, also it has a $$+0$$ at the end also it is not an equation, so there is nothing to solve

4. chemENGINEER

would not*

5. satellite73

@kiamonstaa i think maybe you could repost the problem. i doubt this is the question exactly as it is written

6. kiamonstaa

this is the whole thing

7. kiamonstaa

Jules kicks a soccer ball off the ground and into the air with an initial velocity of 25 feet per second. Assume the starting height of the ball is 0 feet. Approximately, how long does it take until the soccer ball hits the ground again? 0.6 sec 0.8 sec 1.6 secs 2.8 secs

8. Spacelimbus

$\Large s= f(t)=s_0+v_0t+\frac{1}{2} at^2$ where $$a=-g$$ and $$s_0=0$$ and $$s=0$$