Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

onegirl

  • 3 years ago

Use the position function to find the velocity at time t = a (HINT: Velocity is the first derivative of the position function). S(t) = t2 - sin√t, a = 0

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

    @mathsmind can u help?

  2. harsimran_hs4
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    v = ds/dt can you find v?

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

    thats the formula?

  4. harsimran_hs4
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes you need to differentiate displacement once wrt time to get velocity

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

    ok

  6. harsimran_hs4
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    find out the derivative and tell

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

    the derivative of t^2 - sin sqrt(t) right?

  8. genius12
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[V(t)=S'(t)=2t-\cos (\sqrt t)*\frac{ 1 }{ 2 }t^{-\frac{ 1 }{ 2 }} \]\[V(a)=V(0)=2(0)-\cos(\sqrt 0)*\frac{ 1 }{ 2 }(0)^{-\frac{ 1 }{ 2 }}\rightarrow V(0)=0\]

  9. harsimran_hs4
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    @genius12 this is not done you should let @onegirl try out herself

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

    yea i wanna know how i do it

  11. genius12
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Well if you look at the work I did above to get the answer, you should be able to figure it out. If you can't understand any of the steps or how I got to a certain point, ask me.

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

    okay

  13. 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