Join TSR now and get all your revision questions answeredSign up now

Physics moments???

    • Thread Starter
    Offline

    0
    ReputationRep:
    Pls can anyone help me with moments. I'll message you the questions?
    Offline

    3
    ReputationRep:
    Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there.


    Just quoting in Fox Corner so she can move the thread if needed :wizard:
    Spoiler:
    Show
    (Original post by Fox Corner)
    x
    Offline

    3
    ReputationRep:
    (Original post by kitkat132000)
    Pls can anyone help me with moments. I'll message you the questions?
    If it's GCSE then I can help
    Offline

    1
    ReputationRep:
    Post actual question in the forum. I dont know why you have to message it to individuals?
    Offline

    3
    ReputationRep:
    I am a qualified physics teacher, I can definitely help
    • Thread Starter
    Offline

    0
    ReputationRep:
    (Original post by CraigFowler)
    I am a qualified physics teacher, I can definitely help
    Name:  IMG_0149.JPG
Views: 17
Size:  92.8 KB Pls can u explain to me how you would answer this question?
    Offline

    0
    ReputationRep:
    Part a) moment = Force x perpendicular distance so F1 = 3x3 = 9nm
    F2 = 12 x 3 = 36nm
    F3 = 3 x 22 = 66nm
    F4 = 3 x 23 = 69nm

    part b) F1 anticlockwise
    F2 Anticlockwise
    F3 Clockwise
    F4 Clockwise

    part c) Resultant moment = total clockwise moments - total clockwise moments
    = (F3 + F4) - (F1 + F2)
    = 135 - 46
    = 89nm clockwise
    Offline

    3
    ReputationRep:
    (Original post by harvey_u)
    Part a) moment = Force x perpendicular distance so F1 = 3x3 = 9nm
    F2 = 12 x 3 = 36nm
    F3 = 3 x 22 = 66nm
    F4 = 3 x 23 = 69nm

    part b) F1 anticlockwise
    F2 Anticlockwise
    F3 Clockwise
    F4 Clockwise

    part c) Resultant moment = total clockwise moments - total clockwise moments
    = (F3 + F4) - (F1 + F2)
    = 135 - 46
    = 89nm clockwise
    I would suggest you write the unit for moment of force as N m. In physics, nm represents nanometre or nanometer.
    Offline

    0
    ReputationRep:
    Yeah thanks. usually do when writing out by hand.
    Offline

    3
    ReputationRep:
    (Original post by Eimmanuel)
    I would suggest you write the unit for moment of force as N m. In physics, nm represents nanometre or nanometer.
    Sorry I am late to the party, but it seems that the question has been answered correctly. The only thing missing is the explanation behind it. This 6 min video will explain it and give other examples:-

    https://www.youtube.com/watch?v=jUTQ5ADBd5s
 
 
 
Poll
Which party will you be voting for in the General Election 2017?

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

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