🏷️ LIMITED TIME OFFER: GET 20% OFF GRADE+ YEARLY SUBSCRIPTION →
Log in
Algebra
3
answers
0
watching
28
views
19 Nov 2019

Need help with this question, i tried but got it wrong somehow.

Sean dropped a ball from the top of a building 144 feet high. The height of the ball is represented by the equation h = -16t2 + 144 where t represents the time in seconds. Use factoring to determine how many seconds it takes for the ball to reach the ground. Show the steps as outlined in the lesson content.

Watch
3
answers
0
watching
28
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Unlock all answers

Get 1 free homework help answer.
Get unlimited access
Already have an account? Log in
Share
Get unlimited access
Already have an account? Log in
Share
Trinidad Tremblay
Trinidad TremblayLv2
19 Nov 2019
Get unlimited access
Already have an account? Log in
Share

Related questions

Matt and his friends are enjoying an afternoon at a baseball game. A batter hits a towering homerun, and
Matt shouts, “Wow, that must have been 110 feet high!” The ball was 4 feet off the ground when the batter
hit it, and the ball came off the bat traveling vertically at 80 feet per second.


a. Model the ball’s height h (in feet) at time t (in seconds) using the projectile motion model h(t) = 16t2 + v0t + h0 where v0 is the projectile’s initial vertical velocity (in feet per second) and h0 is the projectile’s initial height (in feet). Use the model to write an equation based on Matt’s claim, and then determine whether Matt’s claim is correct.


b. Did the ball reach a height of 100 feet? Explain.


c. Let hmax be the ball’s maximum height. By setting the projectile motion model equal to hmax, show
how you can find hmax using the discriminant of the quadratic formula.


d. Find the time at which the ball reached its maximum height.

Weekly leaderboard

Home
Homework Help 3,900,000
Algebra 190,000
Start filling in the gaps now
Log in