OCR B (MEI) A Level Maths Paper 1 7 October 2020

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ziggy7
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#1
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#1
Did anyone do this resit? What was the paper like?
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q.b
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#2
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I did, I found it ok, some parts were difficult. Wbu, what questions did you struggle with ?
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ollypage10
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#3
Most of em
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eibmathsresit
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#4
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#4
i found it 50/50 like i struggled with the surfs question haha but got the mechanics stuff.
never even thought about practicing first principle so i just answered that with the differential
what did people get for the question if the particle was ever stationary i got no
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fiftythree
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(Original post by eibmathsresit)
i found it 50/50 like i struggled with the surfs question haha but got the mechanics stuff.
never even thought about practicing first principle so i just answered that with the differential
what did people get for the question if the particle was ever stationary i got no
i think i got no too if i remember correctly cos the discriminant was less than 0.
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q.b
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#6
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#6
did anyone get the upper bound area of the tarmac using those rectangles ? I think i got 0.5-something
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Malaii
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#7
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#7
(Original post by q.b)
did anyone get the upper bound area of the tarmac using those rectangles ? I think i got 0.5-something
Yeah that was a really weird question, I got something like 4.3, their lower bound was 3 something so I assume upper bound would be higher? I really didn’t like that question
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Malaii
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#8
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#8
Did anyone get that the projectile doesn’t hit the wall? I got that it reaches a height of 6 something which is > 5m so it passes over...
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q.b
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#9
(Original post by Malaii)
Did anyone get that the projectile doesn’t hit the wall? I got that it reaches a height of 6 something which is > 5m so it passes over...
Yh i got that
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q.b
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#10
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#10
(Original post by Malaii)
Yeah that was a really weird question, I got something like 4.3, their lower bound was 3 something so I assume upper bound would be higher? I really didn’t like that question
I pretty sure the lower bound was like 0.3-ish so you probably got 0.43
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q.b
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#11
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#11
Did anyone get the single point of inflection question ?
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Malaii
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(Original post by q.b)
I pretty sure the lower bound was like 0.3-ish so you probably got 0.43
Oh yeah probably
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Malaii
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#13
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#13
(Original post by q.b)
Did anyone get the single point of inflection question ?
I found the stationary points (square root +- 1/3) but couldn’t find the point of inflection, is that when the second derivative = 0?
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Malaii
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#14
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#14
(Original post by q.b)
I pretty sure the lower bound was like 0.3-ish so you probably got 0.43
What was your method for the question?
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q.b
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#15
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#15
(Original post by Malaii)
I found the stationary points (square root +- 1/3) but couldn’t find the point of inflection, is that when the second derivative = 0?
Yh i did the same and said point of inflection is where second derivative gradient =0 which wasn't on the stationary points
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q.b
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#16
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#16
(Original post by Malaii)
What was your method for the question?
I think I just used the highest point for the first rectangle and then kept going down, wbu?
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eibmathsresit
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#17
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#17
what did people get for the acceleration of the pulley
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eibmathsresit
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#18
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#18
i think i got 0.43something for the upper bound
what did people get for volume i remember i got 20 something
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Malaii
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#19
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#19
(Original post by q.b)
I think I just used the highest point for the first rectangle and then kept going down, wbu?
Yeah I used the trapezium rule and ignored the first y value (so yeah I worked down).
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q.b
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#20
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#20
(Original post by eibmathsresit)
what did people get for the acceleration of the pulley
I thought it asked to show that the acceleration was like 0.35 or something?
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