Wednesday

March 4, 2015

March 4, 2015

Posted by **Anon** on Sunday, December 9, 2012 at 9:16pm.

Write an equation that gives the height (in feet) of the football as a function of the time (in seconds) since it was punted.

Find the height (in feet) of the football 2 seconds after the punt.

Calculate how many seconds after the punt the ball would hit the ground.

- math/algebra -
**Reiny**, Sunday, December 9, 2012 at 9:46pmheight = -16t^2 + 47t + 3

when t=2

height = -64 + 94 + 3 = 33 feet high

to hit the ground, height = 0

-16t^2 + 47t+3=0

16t^2 - 47t - 3 = 0

(t-3)(16t + 1) = 0

t = 3 or t = a negative, which is not valid

it will hit the ground after 3 seconds

**Answer this Question**

**Related Questions**

math - A kicker punts a football from 3 feet above the ground with an initial ...

Algebra 1 - A kicker punts a football from 3 feet above the ground with an ...

Math/ Calculus Help1 - Supplies are dropped from a stationary (not moving up or ...

Algebra - THe function h(t)=-16t^2+v0t+h0 describes the height in feet above the...

Algebra - THe function h(t)=-16t^2+v0t+h0 describes the height in feet above the...

Maths/ Calc - Supplies are dropped from a stationary (not moving up or down) ...

Algebra - The height of a ball thrown directly up with a velocity of 40 feet per...

algebra - An object that is projected straight downward with initial velocity v ...

algebra - An object that is projected straight downward with initial velocity v ...

college algebra - Isn't this a plug and chug? I will be happy to critique your ...