Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

sarah786

A cyclist cycling around a circular racing track skids because A.the centripetal force upon him is less than limiting friction B.the centripetal force upon him is greater then limiting friction C.the centripetal force upon him is equal to the limiting friction D.the friction between the tyres of the cycle and road vanishes

  • 6 months ago
  • 6 months ago

  • This Question is Closed
  1. sarah786
    Best Response
    You've already chosen the best response.
    Medals 1

    @AllTehMaffs :)

    • 6 months ago
  2. AllTehMaffs
    Best Response
    You've already chosen the best response.
    Medals 1

    Which one do you think?

    • 6 months ago
  3. AllTehMaffs
    Best Response
    You've already chosen the best response.
    Medals 1

    hai

    • 6 months ago
  4. AllTehMaffs
    Best Response
    You've already chosen the best response.
    Medals 1

    |dw:1382088401350:dw| Which way would the cyclist slide, and what are the two forces working against each other?

    • 6 months ago
  5. AllTehMaffs
    Best Response
    You've already chosen the best response.
    Medals 1

    :)

    • 6 months ago
  6. sarah786
    Best Response
    You've already chosen the best response.
    Medals 1

    Centripetal and Centrifugal forces :/

    • 6 months ago
  7. sarah786
    Best Response
    You've already chosen the best response.
    Medals 1

    is it B ?

    • 6 months ago
  8. AllTehMaffs
    Best Response
    You've already chosen the best response.
    Medals 1

    1/2 of that is right:) That half is 100 % right. Centripetal force pushing towards the center of the circle, and it's the friction that's applying the force. I drew the first diagram wrong. |dw:1382107001459:dw| The sum of all the forces is equal to the centripetal force \[ \sum F = F_f =m a_c = F_c \] I think I may have explained that poorly ;/ Centrifugal force doesn't really exist. The thing people call "centrifugal" force is just the tendency of your body to keep going straight while the car is turning. That's another question though :)

    • 6 months ago
  9. sarah786
    Best Response
    You've already chosen the best response.
    Medals 1

    its B then ???

    • 6 months ago
  10. AllTehMaffs
    Best Response
    You've already chosen the best response.
    Medals 1

    Yup yup :) \[ a_c = \frac{v^2}{r} \] so if \[F_c > F_f\] the bike skids.

    • 6 months ago
  11. sarah786
    Best Response
    You've already chosen the best response.
    Medals 1

    ty so much :)

    • 6 months ago
    • Attachments:

See more questions >>>

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.