Turn on thread page Beta
    Offline

    18
    ReputationRep:
    (Original post by krisshP)
    which dotted line? The one perpendicular to the one parallel to the inclined surface?

    I understand now, but still.
    Yeah that one if you draw this line with longer dashes

    It should form a right angled triangle between the dotted and dashed line

    With theta between the vertical and dotted.

    And (90-theta) call it phi, between the vertical and dashed.
    • Thread Starter
    Offline

    11
    ReputationRep:
    (Original post by L'Evil Fish)
    Yeah that one if you draw this line with longer dashes

    It should form a right angled triangle between the dotted and dashed line

    With theta between the vertical and dotted.

    And (90-theta) call it phi, between the vertical and dashed.
    I starting to be more confused. But I already get it. Using your hands helps so much. If you twist them a bit it helps a lot and is simple for me!

    thanks
    Offline

    18
    ReputationRep:
    (Original post by krisshP)
    I starting to be more confused. But I already get it. Using your hands helps so much. If you twist them a bit it helps a lot and is simple for me!

    thanks
    Ahah okay sorry! It was going to be a triangle where you'd have to find the length of the dotted perpendicular line and then the dashed line.
    • Thread Starter
    Offline

    11
    ReputationRep:
    (Original post by L'Evil Fish)
    Ahah okay sorry! It was going to be a triangle where you'd have to find the length of the dotted perpendicular line and then the dashed line.
    How do you smart physicts recognise these angles so so fast??
    Offline

    18
    ReputationRep:
    (Original post by krisshP)
    How do you smart physicts recognise these angles so so fast??
    If the component you want has the angle in between it and the force you know, then it's NCosTheta where N is magnitude of force you know.

    If it's not it'd be NSinTheta
    • Thread Starter
    Offline

    11
    ReputationRep:
    (Original post by L'Evil Fish)
    If the component you want has the angle in between it and the force you know, then it's NCosTheta where N is magnitude of force you know.

    If it's not it'd be NSinTheta
    thanks
    Offline

    0
    ReputationRep:
    http://www.edexcel.com/migrationdocu...e_20110112.pdf
    13(b)
    Offline

    0
    ReputationRep:
    I'm not being sarcastic, is that to help with the components question or is it some sort of metaphor about understanding things? Sorry.
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: January 3, 2013
  • create my feed
  • edit my feed
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.