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    (Original post by PeterDylan)
    Oh is this how you do it? in the question it said it was travelling horizontally so i set the final speed (in y direction) to be 0 and found the vertical distance, then used trig to find PQ, has this method got any merit at all or have i just made it up? hahaha
    I don't think it said it was travelling horizontally. I re read the question like 3 times thinking it must be travelling horizontally but I couldn't find anything that suggested it was (I had the projectile Q of 2015 in mind). Was I just illiterate? Lol
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    Cna someone post the rel motion question?(the hard one), won't mind some hard ones to practice fir my M4 exam!


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    (Original post by physicsmaths)
    Cna someone post the rel motion question?(the hard one), won't mind some hard ones to practice fir my M4 exam!


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    There's quad bike, car and truck. Bike is moving at 10ms^-1 due West. Relative to the bike is truck moving at bearing 340 (not sure) . The car is moving at 15ms^-1 due East. Relative to the car is the truck moving at bearing of 300 (I can't remember, someone let me know). Find the direction and velocity of the truck. [8]

    Then another 8 marker afterwards that I didn't even bother reading
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    (Original post by C0balt)
    I don't think it said it was travelling horizontally. I re read the question like 3 times thinking it must be travelling horizontally but I couldn't find anything that suggested it was (I had the projectile Q of 2015 in mind). Was I just illiterate? Lol
    Don't worry, you're not illiterate! It didn't say anything about it travelling horizontally as far as I can remember.

    Since the angle was 45*, each shorter side would be the same length (I called it 'l', and you had to set x = 6 + l and y = l and solve it. Then you can work out what the length PQ is!

    Just realised you mentioned this in an earlier comment!
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    (Original post by C0balt)
    There's quad bike, car and truck. Bike is moving at 10ms^-1 due West. Relative to the bike is truck moving at bearing 340 (not sure) . The car is moving at 15ms^-1 due East. Relative to the car is the truck moving at bearing of 300 (I can't remember, someone let me know). Find the direction and velocity of the truck. [8]

    Then another 8 marker afterwards that I didn't even bother reading
    Also those bearings are correct I'm pretty sure
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    (Original post by C0balt)
    There's quad bike, car and truck. Bike is moving at 10ms^-1 due West. Relative to the bike is truck moving at bearing 340 (not sure) . The car is moving at 15ms^-1 due East. Relative to the car is the truck moving at bearing of 300 (I can't remember, someone let me know). Find the direction and velocity of the truck. [8]

    Then another 8 marker afterwards that I didn't even bother reading
    Oh ok, i have done quite alot like that. Vectors would have been the nices way or combine the triangles geometrically(doesnt always work).
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    Would anyone else mind sharing some of their answers? Particularly, to the projectiles question with the coefficient of restitution (the inequality).
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    Anyone else get around 3.5m for length of PQ?
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    Yeah something similar
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    (Original post by A Slice of Pi)
    Would anyone else mind sharing some of their answers? Particularly, to the projectiles question with the coefficient of restitution (the inequality).
    What is he answer to the rel morion?
    328 and 46.2?


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    (Original post by A Slice of Pi)
    I'm assuming they had no problems with the rest of the paper?
    No, funnily enough. One of them walked out and actually said he found it alright, and 'quite enjoyable'.


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    "Do an extra module" they said. "It'll boost your grade" they said :'(
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    (Original post by physicsmaths)
    What is he answer to the rel morion?
    328 and 46.2?


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    Nope it was 318 for the bearing and something else for the speed.
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    (Original post by aoxa)
    No, funnily enough. One of them walked out and actually said he found it alright, and 'quite enjoyable'.

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    I wouldn't quite go that far aha. If there's more people like that around we can expect high boundaries. What did they get for the e < inequality for the projectiles?
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    (Original post by A Slice of Pi)
    Nope it was 318 for the bearing and something else for the speed.
    Damit where is the mistake


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    (Original post by A Slice of Pi)
    Nope it was 318 for the bearing and something else for the speed.
    The question Cobalt posted is correct right?


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    (Original post by aoxa)
    No, funnily enough. One of them walked out and actually said he found it alright, and 'quite enjoyable'.


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    Well if by some miracle I meet my offer for camb (which is extremely unlikely), I know I won't fit in 😂
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    (Original post by C0balt)
    Well if by some miracle I meet my offer for camb (which is extremely unlikely), I know I won't fit in 😂
    Lol you will meet it. No doubt.


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    (Original post by physicsmaths)
    Lol you will meet it. No doubt.


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    Yeah, if the A* requirement wasn't in FM I would, but I'm expecting a D on this exam. And FP2 will surely be a present from Satan as well
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    (Original post by physicsmaths)
    The question Cobalt posted is correct right?


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    As far as I can tell. It was a deceptively hard question.
 
 
 
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