A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 3 years ago
If an object is dropped from a height of 144 feet, the function h(t)= 16t^2+144 gives the height of the object after t seconds. When will the object hit the ground?
A. 9 s
B. 6 s
C. 1.5 s
D. 3 s
anonymous
 3 years ago
If an object is dropped from a height of 144 feet, the function h(t)= 16t^2+144 gives the height of the object after t seconds. When will the object hit the ground? A. 9 s B. 6 s C. 1.5 s D. 3 s

This Question is Closed

whpalmer4
 3 years ago
Best ResponseYou've already chosen the best response.1well, solve the equation for h = 0...what positive value of t makes it so?

whpalmer4
 3 years ago
Best ResponseYou've already chosen the best response.1at t = 0, h(0) = 16(0)^2 + 144 = 144 feet, which is the height from which it is being dropped. at some later t, h(t) = 0, and that's when it hits the ground.

whpalmer4
 3 years ago
Best ResponseYou've already chosen the best response.1\[h(t) = 0 = 16t^2+144\]\[16t^2=144\]\[t=\]

whpalmer4
 3 years ago
Best ResponseYou've already chosen the best response.1always, always check your answers in the original formula to make sure they correctly answer the question.

whpalmer4
 3 years ago
Best ResponseYou've already chosen the best response.116(3)(3) = 144, so that is a reasonable answer. Note that t = 3 also satisfies the equation, but does not satisfy the conditions described in the problem, so it is not a correct solution here.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.