Turn on thread page Beta
    • Thread Starter
    Offline

    1
    ReputationRep:
    Hi guys. I'm stuck in the following problem:
    a square hoop ABCD is made of smooth wire and has sides of length 2a. The hoop is horizontal and is rotating with constant angular speed w about a vertical axis through A. A small bead which can slide on the wire is initially on rest at the midpoint of BC. Choose axes fixed relative to the hoop, and let y be the distance of the bead from the vertex B on the side BC. Write down the position vector of the bead in the rotating frame.

    I've chosen as axes AD=i, AB=j and AD x AB=k. In these axes we have w=(0,0,w), r(0)= (sqrt(5), (1/2)*sqrt(5), 0). But I don't know how to continue. Can anyone help me?
    Cheers, D.
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: February 11, 2010

University open days

  • Staffordshire University
    Everything except: Midwifery, Operating Department Practice, Paramedic Undergraduate
    Sun, 21 Oct '18
  • University of Exeter
    Undergraduate Open Days - Exeter Campus Undergraduate
    Wed, 24 Oct '18
  • University of Bradford
    Faculty of Health Studies Postgraduate
    Wed, 24 Oct '18
Poll
Who is most responsible for your success at university

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.