Homework Help

A kicker punts a football from 3 feet above the ground with an initial velocity of 47...

user profile pic

loishy | Student, Grade 10 | (Level 1) Salutatorian

Posted April 8, 2013 at 3:43 PM via web

dislike 1 like

A kicker punts a football from 3 feet above the ground with an initial velocity of 47 feet per second.

 

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

The height of the ball is given by      `h(t)= -16t^2 + 47t + 3`

1 Answer | Add Yours

user profile pic

tiburtius | High School Teacher | (Level 3) Associate Educator

Posted April 8, 2013 at 4:08 PM (Answer #1)

dislike 2 like

To find the height you simply put 2 instead of `t` into your formula for height.

`h(2)=-16cdot2^2+47cdot2+3=-16cdot4+94+3=33`

Hence the height of the football 2 seconds after the punt is 33 feet.

Join to answer this question

Join a community of thousands of dedicated teachers and students.

Join eNotes