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Edexcel Mechanics M1 2018 Unofficial Mark Scheme

Let's get this mark scheme going

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5,42 for min point of P?
1) 5/4u and 1/4u
2)31.12
3)735 and 2898
4)24?, 0.12 and graph
And I can't remember the rest
Original post by griffithsj18
1) 5/4u and 1/4u
2)31.12
3)735 and 2898
4)24?, 0.12 and graph
And I can't remember the rest


For question 3 part 2 you have to do 3SF
Original post by alexbrown8
5,42 for min point of P?


For which question?
2. P = 6.66N
3. Tension in C = 75g
3b. Tension in D = 1035g/3.5
Lift Question, a. F = 707N, b. 6 people, can’t be 7 as I had 6.97 which takes tension over 10000N

t for particle to pass B = 0.11s
7. a = 3G/20 all I can remember
(edited 5 years ago)
7 people in lift i got
Reply 7
Avatar for AndreyG
AndreyG
8
This is Edexcel IAL?
Original post by alexbrown8
5,42 for min point of P?


same as mine but seems lots of people got 31 something :frown:
Reply 9
Avatar for Wisdom2
Wisdom2
15
P = 16.4
Tension in C = 735N Tension in D = 1323N
velocity of P = 1/4u
Velocity of Q = 5/4u
Lift Q part a 3050N b) 6 people
Original post by Maithuglife1
same as mine but seems lots of people got 31 something :frown:


I think if you worked it out in th other firection you would get that but it said min point so went with 5.42
Q1 1/4u 5/4u
Q2 31.1N
Q3 735N 2898N
Q4 u=24 t=0.105
Q5 708N ...
Q6 a=13.4ms^-2 243degree
Original post by Wester123
7 people in lift i got

you can't round up for that question because it is a maximum value so answer is 6 people
Reply 13
Avatar for sgsb0y
sgsb0y
10
I got 9 for the lift

10000-100-75gx= (75x 250)3

EDIT: nvm it’s 6
(edited 5 years ago)
Reply 14
Avatar for inshaa
inshaa
7
Original post by AndreyG
This is Edexcel IAL?


i guess no. i think its the GCE
Gonna be some low grade boundaries :smile:
Reply 16
Avatar for NP2803
NP2803
7
10000-100-Mg-250g=(75 250 100/g)3
Original post by alexbrown8
5,42 for min point of P?


I got this bud and im 100% sure I’m right so you just bagged 10 marks
Reply 18
Avatar for gicoz
gicoz
6
1. v of P=1/4u and v of Q=5/4u
2. P=31.1N
3. Tension in C=75gN, Tension in D=1035g/3.5N
4.R=708N, 6 people
5.value of U=24, time was 0.105s and graph starts at 24 goes up to 25,straight down to -10 and doesn't reach back to 0
6. Magnitude of a=15root5, bearing 243°
7. String is inextensible, acceleration was 3g/25
Last part you find distance travelled by Q under gravity , and you get 3g/25h. Add it to h and you get 28g/25h.
(edited 5 years ago)
How did people find it in general?

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