Turn on thread page Beta
    • Thread Starter
    Offline

    3
    ReputationRep:
    http://www.mathalino.com/reviewer/m....grams-by-parts

    First , 1st solution, the author taking moment about 2m from A? secondly, the 800Nm is clockwise moment, so it is positive? why the 2400Nm on the right(anticlockwise moment) is also positive?

    i think the 2400Nm anticlockwise moment should be negative, which is located under the x-axis of graph , am i right?




    in the second solution here, why the 400Nm is drawn from A to 2m away from A? why not the entire length of beam?
    The 400nm act along the entire length of beam? Is it true?
    • Thread Starter
    Offline

    3
    ReputationRep:
    (Original post by wilson dang)
    http://www.mathalino.com/reviewer/m....grams-by-parts

    First , 1st solution, the author taking moment about 2m from A? secondly, the 800Nm is clockwise moment, so it is positive? why the 2400Nm on the right(anticlockwise moment) is also positive?

    i think the 2400Nm anticlockwise moment should be negative, which is located under the x-axis of graph , am i right?




    in the second solution here, why the 400Nm is drawn from A to 2m away from A? why not the entire length of beam?
    The 400nm act along the entire length of beam? Is it true?
    Bump
    Offline

    7
    ReputationRep:
    Hi! I want to take a look but the link doesn't work.
    • Thread Starter
    Offline

    3
    ReputationRep:
    (Original post by aerofanatic)
    Hi! I want to take a look but the link doesn't work.
    Here you go
    http://www.mathalino.com/reviewer/me...grams-by-parts
    Offline

    7
    ReputationRep:
    To be honest I don't understand why subtraction is even involved in the three examples, e.g. for the first solution, all centroid locations are on the same side.
    • Thread Starter
    Offline

    3
    ReputationRep:
    Can anybody help?

    Sent from my C6502 using Tapatalk
    • Thread Starter
    Offline

    3
    ReputationRep:
    bump
    • Thread Starter
    Offline

    3
    ReputationRep:
    bump
    Offline

    0
    ReputationRep:
    hi I have a question of structural engineering can anyone help?
    Offline

    7
    ReputationRep:
    (Original post by pui95)
    hi I have a question of structural engineering can anyone help?
    I can try?
 
 
 
Poll
Do you think parents should charge rent?

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.