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

    2
    ReputationRep:
    Name:  triangle.PNG
Views: 55
Size:  8.5 KB
    So I've got these forces acting on an object and it wants me to create a vector triangle (it's in equilibrium).
    How do you work out the angles in the triangle when you are just given the angles to the horizontal? I worked it out by making a right angled triangle for T1 and T2 (bit hard to explain) but was wondering what the best way to do it is because in textbooks they don't tell you how you find the angles. Rough sketch of what the triangle would look like below:
    Attachment 543511543515
    Attached Images
     
    Offline

    1
    ReputationRep:
    you work ou the angle to the vertical force by minusing 90 and the horizontal angles. To get to the vertical which is the weight in this case.
    • Thread Starter
    Offline

    2
    ReputationRep:
    (Original post by Roadman123)
    you work ou the angle to the vertical force by minusing 90 and the horizontal angles. To get to the vertical which is the weight in this case.
    So you do -90 - horizontal angle? Or am I getting the wrong idea?
    Offline

    1
    ReputationRep:
    90-horizontal angle=Angle to the vertical
    sorry about that.
    • Thread Starter
    Offline

    2
    ReputationRep:
    (Original post by Roadman123)
    90-horizontal angle=Angle to the vertical
    sorry about that.
    Thanks, makes a lot more sense now, only problem is with vector T2 because it goes in the opposite direction... The rule still works but I was kinda struggling to visualize it, am I getting the right idea here?

    Name:  Untitled2.png
Views: 31
Size:  11.3 KB
    Offline

    1
    ReputationRep:
    Name:  help.jpg
Views: 28
Size:  31.6 KBhere is my an image if this helps.
    Attached Images
     
    • Thread Starter
    Offline

    2
    ReputationRep:
    Yeah that helps a lot, thanks
 
 
 
  • 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
    Brexit voters: Do you stand by your vote?
  • 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.