Turn on thread page Beta
    Offline

    6
    ReputationRep:
    1ii) 960m/s
    1III) 3.45m/s
    2bi) New pressure was 314K Pa
    ii) 7.45% increase or so but I forgot to square root it
    3) (Can't remember the question)
    4) (Can't remember the question)
    5) (Can't remember the question)
    6) (Can't remember the question)
    7) (Can't remember the question)
    8) (Can't remember the question)

    Data analyse: Thought it was pretty easy, made my graph go through the origin, my gradient worked out to be 2.4 (but I think this is 10 times too big for some reason but everything else worked out ok) and then my percentage uncertainty in C was about 9% so then my percentage uncertainty in A was half that so about 4.45%
    Offline

    0
    ReputationRep:
    (Original post by Sunflower654321)
    And what was the minimum ke?
    it was just 0
    Offline

    0
    ReputationRep:
    What did everyone put for the Gymnast circular motion question, i said that the max force on bar was at the bottom due to the the weight acting in the opposite direction and then at the top of the circle it was no force due to the accelaration being equal to g and hence it is weightless
    Offline

    1
    ReputationRep:
    Evidence for the graph not being proportional?
    Offline

    0
    ReputationRep:
    (Original post by dannywelbeck123)
    Evidence for the graph not being proportional?
    best fit line would not pass through origin
    Offline

    0
    ReputationRep:
    (Original post by dannywelbeck123)
    Evidence for the graph not being proportional?
    think its that wouldn't pass through origin but i put down that it was a curve
    Offline

    1
    ReputationRep:
    (Original post by doudsy)
    What did everyone put for the Gymnast circular motion question, i said that the max force on bar was at the bottom due to the the weight acting in the opposite direction and then at the top of the circle it was no force due to the accelaration being equal to g and hence it is weightless
    Almost certain that is right, I however got it wrong
    Offline

    13
    ReputationRep:
    (Original post by doudsy)
    think its that wouldn't pass through origin but i put down that it was a curve
    No that should be right as well. Doesn't pass through the origin doesn't hold up on its own anyway as a straight line graph with a y intercept (that isn't zero) still displays linear proportionality.
    Offline

    2
    ReputationRep:
    Does anyone have an unofficial mark scheme?
    Offline

    0
    ReputationRep:
    That question kinda threw me, but I said zero
    Offline

    0
    ReputationRep:
    (Original post by doudsy)
    What did everyone put for the Gymnast circular motion question, i said that the max force on bar was at the bottom due to the the weight acting in the opposite direction and then at the top of the circle it was no force due to the accelaration being equal to g and hence it is weightless
    I said Max force on the bar was when the gymnast was at top as mg and mrw2 both acted downward on the bar😁 But I've no clue if I'm right
    Offline

    1
    ReputationRep:
    (Original post by MaryT97)
    I said Max force on the bar was when the gymnast was at top as mg and mrw2 both acted downward on the bar😁 But I've no clue if I'm right
    I said that too but apparently it's when the gymnast was at the bottom.
    Offline

    2
    ReputationRep:
    Does anyone do biology and have an essay prediction?
    Offline

    0
    ReputationRep:
    For the final part of the momentum question, about the change to part (ii) when there are two rugby players tackling rather than one does anyone know the right answer?
    Offline

    0
    ReputationRep:
    Did anyone else get 4.04% for the percentage increase question? I just used ratios
    Offline

    13
    ReputationRep:
    Also did people say true of false about the statment on energy of the pendulum. The question threw me a bit beacuse i wasnt sure if they meant the energy within the system being conserved or the energy dissipated fromdamping being conserved
    Offline

    0
    ReputationRep:
    (Original post by CalebSR;[url="tel:65175049")
    65175049[/url]]For the final part of the momentum question, about the change to part (ii) when there are two rugby players tackling rather than one does anyone know the right answer?
    The momentum was still in the same direction but he was travelling at a smaller velocity just
    Offline

    0
    ReputationRep:
    (Original post by Mr.bob;[url="tel:65176331")
    65176331[/url]]Also did people say true of false about the statment on energy of the pendulum. The question threw me a bit beacuse i wasnt sure if they meant the energy within the system being conserved or the energy dissipated fromdamping being conserved
    I said it wasn't conserved because the amplitude decreases and hence losses speed and hence less kinetic energy
    Offline

    0
    ReputationRep:
    (Original post by doudsy)
    The momentum was still in the same direction but he was travelling at a smaller velocity just
    If his velocity dropped my more than half when one player was tackling him would a second player with the same speed and velocity not cause him to go backwards?
    Offline

    13
    ReputationRep:
    (Original post by CMcKeever)
    If his velocity dropped my more than half when one player was tackling him would a second player with the same speed and velocity not cause him to go backwards?
    Even doing a quick conservation of momentum calculation showed that it didnt result in a direction change (only a decreased velocity)
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: June 9, 2016

University open days

  • University of Roehampton
    All departments Undergraduate
    Sat, 17 Nov '18
  • Edge Hill University
    Faculty of Health and Social Care Undergraduate
    Sat, 17 Nov '18
  • Bournemouth University
    Undergraduate Open Day Undergraduate
    Sat, 17 Nov '18
Poll
Black Friday: Yay or Nay?

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.