A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 4 years ago

Can someone please help me out with this problem: An object is thrown vertically upward and has a speed of 24m/s when it reaches two thirds of its maximum height above the launch point. Determine its maximum height. Please show me how to do this. Thanks in advance.

  • This Question is Closed
  1. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    are u there?

  2. TuringTest
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 3

    the velocity at the top is 0 we can use that to set up a kinematic equation for the last third of the motion upwards\[v_f^2=v_i^2+2ad\]acceleration is g (down) the initial velocity is given, the final velocity is 0, and the height it moves is one-third the total height h/3\[0=v_i^2-\frac23gh\]solve for h

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

    hey eash more help me in my question

  4. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Thanks for your help. What happened to the 2, that would be in front of the g?

  5. TuringTest
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 3

    it's still there, but I put it over the three we get from h/3

  6. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok, what happened to the 2 in 2/3 go?

  7. TuringTest
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 3

    |dw:1328243865207:dw|we are just considering the last third of its flight over the distance h/3 after that if we find h we know the total height

  8. anonymous
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    okay that helped a lot.

  9. TuringTest
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 3

    \[v_f^2=v_i^2+2ad\]\[d=\frac h3\]\[a=-g\]\[v_f=0\]so we get\[0=v_i^2-2g\cdot\frac h3=v_i^2-\frac23gh\]

  10. 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.