Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

megen505

  • 2 years ago

A balloonist happens to drop his metal ballpoint pen from his balloon as he is taking notes on his flight. Because his pen has a streamlined shape, air resistance has little effect on its fall. The pen strikes the ground at 22 m/s. How high was the balloon? (Points : 6) 25 m 49 m 850 m 9,500 m

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

    u have to find acceleration to find height

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

    the formula that can be used is v^2=u^2+2as

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

    wht is your answer

  4. Shadowys
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    \(\vec v_f^2=\vec v_i^2+2\vec a \cdot \vec S\) since \(\vec v_i=0\hat j\),\(\vec v_f=-22\hat j\),\(\vec a=-10\hat j \), plug it in to get, \((-22\hat j)^2=2(-10\hat j) \cdot \vec S\) \(\vec S=-24.2\hat j\) do you need further help?

  5. raane
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @Shadowys u could've aloud @megen505 to solve this q' her own and understand. at least a chance

  6. 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