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

    2
    ReputationRep:
    (Original post by L'Evil Wolf)
    Somone please help with this q

    http://www.thestudentroom.co.uk/show....php?t=1255487
    sorry cant see the question
    Offline

    2
    ReputationRep:
    (Original post by candol)
    the key is that final velocity becomes the initial velocity for the next stage of motion
    Ok that makes sense thanks
    Offline

    2
    ReputationRep:
    (Original post by L'Evil Wolf)
    Somone please help with this q

    http://www.thestudentroom.co.uk/show....php?t=1255487
    try sketching the diagram first.
    After that we can look at puting in the angles/sides
    I would then suggest finding the angle at B (use the cosine rule as you have all 3 sides)
    Offline

    3
    ReputationRep:
    I'm going to fail so hard. Please help me, I don't understand any of it..
    Offline

    15
    ReputationRep:
    How do you know if you need a numerical answer or in terms of letter, it doesnt seem apparent and its so annoying
    Offline

    10
    ReputationRep:
    Hi, Very simple question, when do you know you have to split something into its components, e.g. the weight of a particle?

    Thanks
    Offline

    3
    ReputationRep:
    (Original post by metrize)
    How do you know if you need a numerical answer or in terms of letter, it doesnt seem apparent and its so annoying
    Do you mean surd and decimals?
    Offline

    15
    ReputationRep:
    (Original post by mani119)
    Do you mean surd and decimals?
    Like T=3/5m for example
    Offline

    2
    ReputationRep:
    (Original post by ryandaniels2015)
    Hi, Very simple question, when do you know you have to split something into its components, e.g. the weight of a particle?

    Thanks
    When it's acting at an angle so if the object was on a slope you'd split it

    Posted from TSR Mobile
    Offline

    2
    ReputationRep:
    (Original post by metrize)
    How do you know if you need a numerical answer or in terms of letter, it doesnt seem apparent and its so annoying
    Yeah I always get stuck on that as well I spend ages trying to work out a numerical answer and then the mark scheme has it in terms of a letter

    Posted from TSR Mobile
    Offline

    10
    ReputationRep:
    (Original post by flowerspace)
    When it's acting at an angle so if the object was on a slope you'd split it

    Posted from TSR Mobile
    Thanks but what about this case, why would you split for the ring?
    Attached Images
     
    Offline

    10
    ReputationRep:
    (Original post by ryandaniels2015)
    Thanks but what about this case, why would you split for the ring?
    Actually mark scheme says you don't, why?

    Thanks
    Offline

    2
    ReputationRep:
    (Original post by ryandaniels2015)
    Thanks but what about this case, why would you split for the ring?
    I have no idea, I would split it for the string.
    Maybe they are resolving it relative to the string not the ring that might make sense.
    Do you have the mark scheme?

    Posted from TSR Mobile
    Offline

    2
    ReputationRep:
    (Original post by ryandaniels2015)
    Actually mark scheme says you don't, why?

    Thanks
    Ok yeah that makes sense
    It's because it's not on a slope the rod is not at an angle

    Posted from TSR Mobile
    Offline

    10
    ReputationRep:
    Thx for the reply, why would you resolve the string?
    (Original post by flowerspace)
    Ok yeah that makes sense
    It's because it's not on a slope the rod is not at an angle

    Posted from TSR Mobile
    Offline

    19
    ReputationRep:
    (Original post by kiasne)
    I'm going to fail so hard. Please help me, I don't understand any of it..
    I feel you. I'm retaking M1 and just started t revising for it today. Vectors and graphs are the ony topic I can't comprehend and I really need 90%+ on it

    You should try focusing on topics you do not understand first. Try watching these tutorials first, and then jump straight to question by topic booklet on Physics and Maths Tutor.

    (Original post by metrize)
    How do you know if you need a numerical answer or in terms of letter, it doesnt seem apparent and its so annoying
    I usually don't give numerical answers unless the question is on kinematics or it asks for magnitude. Use letters if one of the info they give you (such as speed before collision, weight of a particle) is in letters.
    Offline

    2
    ReputationRep:
    (Original post by ryandaniels2015)
    Thx for the reply, why would you resolve the string?
    Does this diagram make sense?

    Posted from TSR Mobile
    Attached Images
     
    Offline

    2
    ReputationRep:
    (Original post by flowerspace)
    Does this diagram make sense?

    Posted from TSR Mobile
    I should have added the friction too, here

    Posted from TSR Mobile
    Attached Images
     
    Offline

    10
    ReputationRep:
    (Original post by flowerspace)
    I should have added the friction too, here

    Posted from TSR Mobile
    Yes thanks very much, but it's not splitting that bothers me, it's when to do it?
    Offline

    2
    ReputationRep:
    (Original post by ryandaniels2015)
    Yes thanks very much, but it's not splitting that bothers me, it's when to do it?
    Ok, do you have the answers for that question and then I'll see if I can do it and write out why I'm doing each step?

    I've attached some pictures to try and explain it (i think)
    Sorry I'm pretty bad at explaining things haha


    Posted from TSR Mobile
    Attached Images
      
 
 
 
  • 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
    Would you like to hibernate through the winter months?
  • 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

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