A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

a ball is thrown from an initial height of 3 meters with an initial upward velocity of 15 m/s. The ball's height h ( in meters) after t seconds is given by the following h=3 + 15t - 5t2 find all values of t for which the ball's height is 8 meters

  • This Question is Open
  1. random231
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Heyy there! welcome to openstudy.

  2. random231
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    first you need to find out the actual height that you need to calculate from the given equation.

  3. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    8 meters

  4. random231
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    nope thats the total height. the actual height would be 8-3=5 meters

  5. random231
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    then put it on the other side of the equation and solve it fot 't'

  6. IrishBoy123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @paygeaspenG just go ahead and solve for \(h(t) = 8\)

  7. IrishBoy123
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so you are solving \[3 + 15t - 5t^2 = 8\]

  8. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

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
  • 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.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.