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M2 May 2012 Edexcel - Post Exam Thread - Paper and Solutions in the FIRST POST

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Reply 40

Jeid1

scrape a D if im lucky...

Reply 41

Hamburglar

I got the "bloodbath" question, the one where k=6, correct. God knows how.

Then I go a flop on the tension in the tow-bar question, the moments question and the projectiles.

Someone hold me. :frown:

Reply 42

Arsey

Original post by DeadBullyMafiosi

Arsey YOUR A LEGEND.
For the impulse question instead of due north I put upwards and showed the direction will I get the marks:s

I would have thought so, that was a really poor question

I flopped badly..

Arsey, in 6 you've said the speed is 20 m/s then 40 m/s.

?

Reply 45

knowledgecorruptz

Original post by Arsey

hence my comment about the wording, it means in a vertical plane; rather than sideways (into or out of the paper, z-axis)

Are you sure?? Would we seriously lose marks for something like this...it's entirely Edexcel's fault that I didn't get this question right! Would I still get 2 marks for working out Y and its direction? I mean, I've seen a past paper where they ask for the horizontal component and they literally just want to know if it's going left or right...

Reply 46

BobLoblawLawBlog

Original post by snow leopard

Would 1/6<e<1 be acceptable, or does it have to be 1/6<e≤1?

I did that aswell.

Reply 47

ss_1995

Yeah 3b was stupidly worded - but magnitude+direction means you've got to find the resultant and the angle to horizontal in which it acts.

Reply 48

Altaïr

Original post by Arsey

hence my comment about the wording, it means in a vertical plane; rather than sideways (into or out of the paper, z-axis)

but it didn't specify this; they must surely exclude this mark from the paper?

Reply 49

DeadBullyMafiosi

Original post by Arsey

I would have thought so, that was a really poor question

And part c of the last question was the worst out of them all!

I took 3 separate sheets and had a loads of crossing over but essentially , if the examiner reads well I have got 60-65 UMS? DO you reckon examiners penalise for untidiness?

Reply 50

FrightBright

I calculated accellaration wrong use 1200a instead of 1600a will I get e.c.f marks?

Reply 51

Edwin Okli

Original post by Arsey

hence my comment about the wording, it means in a vertical plane; rather than sideways (into or out of the paper, z-axis)

See, I went the whole hog and found the magnitude and angle from the horizontal. Didn't bother reading the question when I redid it. Probably luckily so. But worth more than 4 marks.

Reply 52

Hamburglar

As bad as you've made me feel Arsey, haha, thanks a lot for the solutions and for the general help in this thread on behalf of everyone.

Look forward to seeing you tomorrow for FP1. :smile:

Reply 53

shipoopeey

in question 6, how can the speed of it be 20 ms-1 but the velocity 40 ms-1 upwards?

Reply 54

Mathematix

Surprised I scribbled down some stuff and got k=6 in the last 5 minutes :biggrin:

Reply 55

Altaïr

Original post by ss_1995

Yeah 3b was stupidly worded - but magnitude+direction means you've got to find the resultant and the angle to horizontal in which it acts.

But it didn't ask for the magnitude and direction of the force, it asked for the magnitude and direction of the vertical component of said force.

Reply 56

Jellybean732

Original post by Arsey

hence my comment about the wording, it means in a vertical plane; rather than sideways (into or out of the paper, z-axis)

That's absolute crap wording! Guess I'll have to make up the A* in FP2/3 :/

Thanks for the answers - put me out of my misery to some extent :frown:

Reply 57

Father Ted

Just worked out I've got around 60/75~

Hopefully an A, I got the 'bloodbath' question right but got nothing on the impulse question and the first two parts of the towbar question :angry:

Reply 58

Mathematix

Original post by Hamburglar

As bad as you've made me feel Arsey, haha, thanks a lot for the solutions and for the general help in this thread on behalf of everyone.

Look forward to seeing you tomorrow for FP1. :smile: