OCR Further Maths Mechanics 14th June

How did it go for everyone, i did awful it’s so over for me

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im not sure how to feel about it🤔 do you remember any of your answers? idk if anyone will be making an unofficial ms
Q8
reason: symmetry
natural length: 1.8m
What did you all get for the range of values for e?
Original post by fartmeister69
What did you all get for the range of values for e?

I'm a bit suspicious of my answer but I got 1/2 <= e <=1
Original post by MathsEnjoyer
I'm a bit suspicious of my answer but I got 1/2 <= e <=1

that's right - i can't rearrange an inequality so i got it the wrong way round...
Original post by goaway1239846
that's right - i can't rearrange an inequality so i got it the wrong way round...

That should still be fine 🙂 you'll lose the last A1 mark but you will get the rest and that will still be 6/7 marks (Or 4/5 cannot recall lol)
Original post by MathsEnjoyer
I'm a bit suspicious of my answer but I got 1/2 <= e <=1

I got this but no equality on the 1 because it said it wasn't perfectly elastic
Original post by fartmeister69
I got this but no equality on the 1 because it said it wasn't perfectly elastic

Ah yeah whoops lol
Original post by MathsEnjoyer
That should still be fine 🙂 you'll lose the last A1 mark but you will get the rest and that will still be 6/7 marks (Or 4/5 cannot recall lol)

probs 5/7 cos extra A1 or B1 for realising not perfectly elastic lol... hopefully it's still ok
Original post by fartmeister69
I got this but no equality on the 1 because it said it wasn't perfectly elastic
rip hopefully they condone 5<= Vb <= 20 on the first part then cos ig correct is 5<= Vb < 20
Original post by fartmeister69
What did you all get for the range of values for e?

i got 1/3<=e<=1/2…
Original post by goaway1239846
rip hopefully they condone 5<= Vb <= 20 on the first part then cos ig correct is 5<= Vb < 20

First part I don't think it specified perfectly elastic, it was just for the 2nd.
did people get that the equation was dimensionally consistent?
answer is 1/2 < e < 1
i by mistake put 0 < e < 1/2 i think ill lose 1-2 marks for this
Original post by vkgoat
answer is 1/2 < e < 1
i by mistake put 0 < e < 1/2 i think ill lose 1-2 marks for this

y cant e = 1/2?
i got 1/3<=e<=1/2…

yeah i got that too because we arranged the inequality wrong; effectively we had > instead of <
Thoughts on boundaries overall?

I’m thinking 240 ish now after mech
Original post by goaway1239846
yeah i got that too because we arranged the inequality wrong; effectively we had > instead of <

oh nooo f at least we might get a few method marks? ToT
Yeah same 230-240.