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    Anyone did this paper? How did you find it? I thought question 5 and 6 were well hard - 5 was drawing the graph and stuff. Six was the velocity(differentiation question). I couldn't do part (ii)- gay!

    Ah, well could have been better!!!
    I want to check the answers too if anyone remembers.. So I have a rough idea

    Overall, the paper wasn't bad tho!
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    It was certainly challenging in each m1 area. I messed up the overtaking business and the pulley system. I even had coefficent of friction as 1.2 ish so basically it was screwed up!
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    27 marks for the last page and I wasn't sure about the 9 mark question
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    Yeah me too. It wasn't that bad tho... Did you do the graph sketching- the question part (ii) number 5
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    I had coeff as 1.7, **** was wack. Hardesdt M1 paper in the history of mechanics. FML.
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    (Original post by mcp2)
    I had coeff as 1.7, **** was wack. Hardesdt M1 paper in the history of mechanics. FML.
    same ish i think. I just didnt get it lol. Ive done m2 as well so thought i mgt b ok. Lost around 16 marks me thinks at best. I really wanted a high A lol
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    (Original post by Will1692)
    same ish i think. I just didnt get it lol. Ive done m2 as well so thought i mgt b ok. Lost around 16 marks me thinks at best. I really wanted a high A lol
    The 9 mark question, what time did you get? I got 9.50s
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    (Original post by mcp2)
    The 9 mark question, what time did you get? I got 9.50s
    I dont remember exactly, but i think it was 9. something. i did suvat going upwards which was .something, then acceleration was positive going down as same forces became the driving forces, said u=0, solved s from going upwards, then said u=0, s=10+ distance upwards a =0.315, then solved for t, then added together, hope its correct
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    (Original post by mcp2)
    The 9 mark question, what time did you get? I got 9.50s
    think I got the same.

    Overall not a bad paper I think. Was fine with the last 2 questions. Main problem was with question 4, the pulley system question - I too got coefficient of friction as 1.7 so messed up there!

    Finding time when B overtook A was also very hard, found t to be 26.7 seconds?
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    Much harder than all the mocks right? with 6 i had no idea so i just halved the time and assumed she'd be slowest at half way(when she turned round) and that worked.. not sure i'll get all the marks though :P also got a coefficiant of friction of 1.7, so did a lot of people, could it be right? And finally on the 9 marker, I worked it all out correctly but forgot to add that like third of a second more it took while still travelling up the plane was SO pissed, realising 20 seconds after they took the paper away!
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    (Original post by owen4567)
    think I got the same.


    Finding time when B overtook A was also very hard, found t to be 26.7 seconds?
    I got this also, took me a while though
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    (Original post by owen4567)
    think I got the same.

    Overall not a bad paper I think. Was fine with the last 2 questions. Main problem was with question 4, the pulley system question - I too got coefficient of friction as 1.7 so messed up there!

    Finding time when B overtook A was also very hard, found t to be 26.7 seconds?
    Yep I got 26.7 too. Apparently, according to wikipedia, the coefficient can go over 1.
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    (Original post by Harry-AA)
    Much harder than all the mocks right? with 6 i had no idea so i just halved the time and assumed she'd be slowest at half way(when she turned round) and that worked.. not sure i'll get all the marks though :P also got a coefficiant of friction of 1.7, so did a lot of people, could it be right? And finally on the 9 marker, I worked it all out correctly but forgot to add that like third of a second more it took while still travelling up the plane was SO pissed, realising 20 seconds after they took the paper away!
    minimum point of velocity was when dv/dt = 0? so basically when a = 0?

    Then I found t with the equation of a = 0.

    Then to find length of the pool, i substituted t for the time taken to swim to the other end and back, which gave 30m. To find length of pool I divided this by 2...so length of pool = 15m. Did anyone else do this?
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    (Original post by mcp2)
    Yep I got 26.7 too. Apparently, according to wikipedia, the coefficient can go over 1.
    really? Thought it had to be between 0 and 1. Thinking about it driving home though, the hanging particle had a lower mass, so would tension need to be taken into account?

    Im fine with pulley or slope questions, but throw them together and I get very confused!
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    Mate the question says "C swims from one end ot the other in 28.4s" Why did you divide by 2?
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    (Original post by owen4567)
    minimum point of velocity was when dv/dt = 0? so basically when a = 0?

    Then I found t with the equation of a = 0.

    Then to find length of the pool, i substituted t for the time taken to swim to the other end and back, which gave 30m. To find length of pool I divided this by 2...so length of pool = 15m. Did anyone else do this?

    yeah I cocked that one up haha, but might get answer marks?

    and for the length, 5 of us took the exam, two(including me) got 50m when subsituting in t, one got 100m because they didn't divide by 2 and one got 15m like you, but...thats a really short pool but I don't know the actual answer
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    cause C went from one end of the pool and back again took 28.4s
    so one end took 14.2....thats what i did
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    (Original post by mcp2)
    Mate the question says "C swims from one end ot the other in 28.4s" Why did you divide by 2?
    Damn i must have misread the question! ARrghhh, should only lose one mark though?
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    Well that was OK, although I felt some of the questions were really poorly written. For example two horizontal forces with angle 60° between them - they can't both be horizontal in that case - it should have said in the same horizontal plain or something.

    (Original post by mcp2)
    Yep I got 26.7 too. Apparently, according to wikipedia, the coefficient can go over 1.
    Yeah same, 26.7s is what I got too.

    As for the coefficient of friction, I got sqrt(3) = 1.71. I took tension into account, but either we all made mistakes or the question was wrong. In what situations could μ be greater than 1?

    (Original post by owen4567)
    minimum point of velocity was when dv/dt = 0? so basically when a = 0?

    Then I found t with the equation of a = 0.

    Then to find length of the pool, i substituted t for the time taken to swim to the other end and back, which gave 30m. To find length of pool I divided this by 2...so length of pool = 15m. Did anyone else do this?
    Yeah the first bit is right. Did it say the time to go to the other end and back?? If so I didn't read it properly so I put 30m.

    I got 9.50s for the last question, took a bit of working out though!
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    (Original post by Harry-AA)
    yeah I cocked that one up haha, but might get answer marks?

    and for the length, 5 of us took the exam, two(including me) got 50m when subsituting in t, one got 100m because they didn't divide by 2 and one got 15m like you, but...thats a really short pool but I don't know the actual answer
    so you too divided by 2? SO the question did say that he swam to the other end and back?
 
 
 
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