Hey there! Sign in to join this conversationNew here? Join for free
    • Thread Starter
    Offline

    3
    ReputationRep:
    https://2802a3b1a650824d2586fd3336bd...%20Edexcel.pdf

    How am i supposed to do question 4?
    It doesn't give me a diagram and all i know are that it has 3 forces, 1 which isn't given and i have to find and that it's in equilibrium.

    I don't know which way any forces are acting so how are you supposed to do this question?
    Offline

    2
    ReputationRep:
    (Original post by Big white)
    https://2802a3b1a650824d2586fd3336bd...%20Edexcel.pdf

    How am i supposed to do question 4?
    It doesn't give me a diagram and all i know are that it has 3 forces, 1 which isn't given and i have to find and that it's in equilibrium.

    I don't know which way any forces are acting so how are you supposed to do this question?
    a) the sum of the i components of all 3 forces equals 0 and the sum of all 3 j components equals 0. So solve for p and q.

    b) get the sum of the first 2 forces and use pythagorus with the i and j components to find the magnitude

    c) use trig to find the angle of the resultant force you calculated. Make sure you add 90 degrees because you want to find the angle to the positive j axis.

    Hope that helps and good luck for tomorrow

    Posted from TSR Mobile
    • Thread Starter
    Offline

    3
    ReputationRep:
    (Original post by Themathgeek)
    a) the sum of the i components of all 3 forces equals 0 and the sum of all 3 j components equals 0. So solve for p and q.

    b) get the sum of the first 2 forces and use pythagorus with the i and j components to find the magnitude

    c) use trig to find the angle of the resultant force you calculated. Make sure you add 90 degrees because you want to find the angle to the positive j axis.

    Hope that helps and good luck for tomorrow

    Posted from TSR Mobile
    thanks, good luck for you too
    Offline

    2
    ReputationRep:
    (Original post by Big white)
    thanks, good luck for you too
    Thank you

    Posted from TSR Mobile
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Would you rather give up salt or pepper?
    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
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • 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.