A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 4 years ago

a particle is projected with velocity 9m/s up a line of greatest slope of a smooth plane inclined at an angle a to the horizontal where sin a=4/7. find the speed of the particle when it has travelled 5m up the plane.

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

    u get a by taking arcsin 4/7

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

    then?

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

    srry i gota do my problems bye i am sure smone else will help

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

    wel i'll giv u hint

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

    use s=ut+1/2 at^2 for horizontal component and get time substitute this time in any other eqn to get ur v

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

    i get the answer 11.71m/s using formula s=vt-1/2at^2. is it correct?

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

    how?

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

    use equation v^2=u^2+2as

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

    what is a?

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

    a=-g(sin a)

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

    \[-mg \sin \Theta =ma\] sin theta=4.7

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

    so our formula is matched but final a isn't

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

    how could??

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

    a=-g(sin a) & \[v=\sqrt{(v _{0}^{2}+2as)}\]

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

    then,u get same answer as me or not?

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

    i distracted no .never mind i'll find it

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

    unbelievable..

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

    i think 4.99 is correct hence particles velocity ought be decreased

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

    okey. thanx a lot.

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

    ur wellcome friend

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

    no medals??

  22. 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.