Hey there! Sign in to join this conversationNew here? Join for free
    • 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 agree with the PM's proposal to cut tuition fees for some courses?

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.