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    Posted from TSR Mobile
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    I got T = 12 for the 10 marker but around ~ 46.5 for the final distance
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    (Original post by Hep123)
    did people get 8 for the bearing?
    Yes i think so

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    (Original post by Conte'sBlueArmy)
    How did you do the finding the angle of the ramp question? I did some weird thing where I cancelled mass, (f=ma), probably didn't work.
    yeah i did same ,I think thats the right way to do it
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    (Original post by Hep123)
    13.6 I think not 100% sure
    I got 1.98 seconds

    Could you tell me how you worked it out?
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    (Original post by 1TrueMeaning)
    What did you get for t in the first question.

    Posted from TSR Mobile
    Angle of the ramp? Any ideas?
    I tried finding the verticals height of the ramp by seeing how much the toy would fall under gravity from u=0 but this came out to be larger 7m and sin-1(7\1) doesn't exist
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    How did everone else find it?

    Any predictions on grade boundries?
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    (Original post by RUNSran)
    yeah i did same ,I think thats the right way to do it
    Cool, didn't know what else to do seing as all we had was acceleration.
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    (Original post by PiTheta97)
    My answers, no idea how many are right:

    Question 1 (Momentum)

    0.4m/s
    15kg

    Question 2 (Particles/Vectors)

    P=14
    Q=-17

    (16i-8j)

    Question 3 (Toy Car on Slope)

    1.5ms^2
    1.8m/s


    Question 4 (Airplane)

    V = 12m/s
    Resultant = 90.8m/s
    008°

    Question 5 (Connected Particles)

    3.92ms^-2
    2.50m/s
    1.12m

    Question 6 (Cleaning Device at 60°)

    Tsin60+5g
    T=43.8N

    Question 7 (Football Projectile)

    1.76s
    13.6m
    13.2m/s
    No air resistance

    Question 8 (Helicopters)

    80.5m


    Posted from TSR Mobile
    I got the same answers as you apart no 8what do you think think garde boundaries will bw?
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    I got a lot of them on that unofficial mark scheme


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    How many Marks do you think you'd get on the 10 marker if you got upto t=5 and t=25 and then did the rest wrong? Is it still possible to pick up method marks if you follow through the wrong answer but use the correct method?
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    (Original post by PiTheta97)
    My answers, no idea how many are right:

    Question 1 (Momentum)

    0.4m/s
    15kg

    Question 2 (Particles/Vectors)

    P=14
    Q=-17

    (16i-8j)

    Question 3 (Toy Car on Slope)

    1.5ms^2
    1.8m/s


    Question 4 (Airplane)

    V = 12m/s
    Resultant = 90.8m/s
    008°

    Question 5 (Connected Particles)

    3.92ms^-2
    2.50m/s
    1.12m

    Question 6 (Cleaning Device at 60°)

    Tsin60+5g
    T=43.8N

    Question 7 (Football Projectile)

    1.76s
    13.6m
    13.2m/s
    No air resistance

    Question 8 (Helicopters)

    80.5m


    Posted from TSR Mobile
    I got the same answers as you apart no 8 .what do you think think garde boundaries will bw?
    • Welcome Squad
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    Welcome Squad
    what was the velocity of the first question????
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    (Original post by Hep123)
    I got 12s sorry Im stressing now haha because vectors will be parallel when vector a is a multiple of vector b
    12 is exactly what I got as well
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    For the modelling assumption [1] I thought it was about air resistance but even a particle would have air resistance so I wrote that the ball cannot stretch and reaches the edges of the box and can't bounce off or tip into the box it can only land exactly on the edge
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    anyone get something like 106m for q8?
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    (Original post by Examguy123)
    I got 1.98 seconds

    Could you tell me how you worked it out?
    I believe you took Sv as being -1 and g as -g? It had to be 1 and -g.
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    (Original post by koolgurl14)
    well i used t=5 because only the i component of the velocity is the same therefore i subbed 5 into the r=ut+1/2at^2 of the A and the r=ut+1/2at^2 + r original of the B then i subtracted the two r from each other to get the distance then i added the square of the i component and the square of the j component and square rooted the answer. Its really hard to explain it without paper and pen I'm not even sure of my answer lol
    I got t=25 since you have to make j components equivalent (same horizontal plane) then subbed in 25 into the s=ut+1/2at^2 then i subracted A from B since AB=OB-OA i got 75i + 62.5 j Then did pythagoras to get 97.6
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    I got around 119m for question 8. Because of equal gradient didn't you need to divide the js by is and equate them for B and A? I did that and simplified to get 119m as a final result.
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    What do you guys think the boundaries will be?
 
 
 
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