Turn on thread page Beta
    • Thread Starter
    Offline

    0
    ReputationRep:
    hi, can anyone help me with Q26.I am gettin confused with all the forces involved, a diagram showing all the forces would be helpful
    thanx in advance.
    Offline

    8
    ReputationRep:
    (Original post by mysterious_grl)
    hi, can anyone help me with Q26.I am gettin confused with all the forces involved, a diagram showing all the forces would be helpful
    thanx in advance.
    You couldn't post/scan the question in could you?
    • Thread Starter
    Offline

    0
    ReputationRep:
    The diagram shows (attachd) a uniform rod AB of mass M and length 2a with the end B in contact with a rough vertical wall.The rod is held in equilbrium by a light inextensible string of length a with one end attached to the mid point G of the rod and the other end attached to a point C of the wall vertically above B.The string and the rod each make an acute angle @ with the horizontal.
    a)Show that µ the coefficient of friction between the wall and the rod satisfies the relation µ more than or equal to tan @.
    When a force of magnitude ½Mg acts at A,in the direction from A to C the system remains in equilibrium.
    b)Find in terms of M,g and @,expressions for the horizontal and vertical components of the force acting on the rod at B.
    c)Given that µ =0.75,deduce that tan @ less than or equal to ½
    Attached Images
     
    Offline

    8
    ReputationRep:
    Sorry it took so long
    Attached Images
      
    • Thread Starter
    Offline

    0
    ReputationRep:
    Sorry it took so long
    its fine, thanx a lot
 
 
 
Turn on thread page Beta
Updated: June 21, 2005
The home of Results and Clearing

1,016

people online now

1,567,000

students helped last year

University open days

  1. Bournemouth University
    Clearing Open Day Undergraduate
    Wed, 22 Aug '18
  2. University of Buckingham
    Postgraduate Open Evening Postgraduate
    Thu, 23 Aug '18
  3. University of Glasgow
    All Subjects Undergraduate
    Tue, 28 Aug '18
Poll
How are you feeling about GCSE results day?
Useful resources

Make your revision easier

Maths

Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

Equations

How to use LaTex

Writing equations the easy way

Student revising

Study habits of A* students

Top tips from students who have already aced their exams

Study Planner

Create your own Study Planner

Never miss a deadline again

Polling station sign

Thinking about a maths degree?

Chat with other maths applicants

Can you help? Study help unanswered threads

Groups associated with this forum:

View associated groups

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.