M1 mechanics edexcel modular exam

[aniekan]

that exam was annoying to read.

Lol Just Like Unit 3B Biology __well Good luck! I hope you did not screw up like me???

 

[Hadi Murtaza]

all my ans r different to u ppl!!!!! ohhh god....and i knew dat 45degrees but didnt put it!!!!! but i hav drawn the forces on their diagram....will i get anything from dat... i dont remeber the values but my force direction was towards the pulley!!! how much will i get they didnt say to mention direction in degrees..i showd it on diagram as an arrow...is it acceptible

I think u'll get 1 or 2 marks.

 

[aniekan]

Now, that is a far exaggeration...I think!

Lol really? I'm not kidding xD_ I'll get a U

 

[Lost_Life]

My moments question wuz all correct. BTW how wuz u'r last question ?

i'm not sure what was the last question about. but i remember the force of the pulley was 2Tcos(45)

 

[IceOccultism]

I got AX as 7.5m too.

 

[Lost_Life]

i

Lol Just Like Unit 3B Biology __well Good luck! I hope you did not screw up like me???

im pretty sure i messed up

 

[Lost_Life]

It's not 2Tcos45. It's just Tcos45. Because it was a 90 degree triangle.

No. My teacher said that that was the right answer

 

[Lost_Life]

The curve will be low this year

 

[Lost_Life]

i got the part a AX as 4m and B as 12m... dont know if rite or wrong....
lost life i guess ur method is weak. coz the tensions were perpendicular so u couldnt use this formula??

what do you mean?

 

[Hadi Murtaza]

i got the part a AX as 4m and B as 12m... dont know if rite or wrong....
lost life i guess ur method is weak. coz the tensions were perpendicular so u couldnt use this formula??

AX wuz between 7 and 7.5, but u wont lose many marks if u did da method ryt

 

[IceOccultism]

Perpendicular means only that the Reaction force splits the angle (90 degrees in two). Equating the two components of tension, which share an equal angle simplifies to 2 * T * Cos45 as you resolve with equal tension due to the modelling assumptions made .

 

[Projjal]

I did so bad that I feel like like crying . I'll be happy even if I get C or D

 

[holloz17]

It's not 2Tcos45. It's just Tcos45. Because it was a 90 degree triangle.

no, it was 2Tcos45 as the magnitude was straight through the middle of the pulley and as there were two tension's it had to be multiplied by 2, i did a very similar question yesterday

 

[Herald Grove]

Lol really? I'm not kidding xD_ I'll get a U

I am expecting a D. This exam was harder than all the previous papers but I blame myself - most of the long questions that I couldn't answer were ones I have done a long time ago and never revised them because I though they would never come.

I just need to forget about M1. Its over. Also, there is S1, C2, C3, and C4 remaining. Do you have S1 this Fri? Are you ready for it?

 

[Raza Rafique]

Perpendicular means only that the Reaction force splits the angle (90 degrees in two). Equating the two components of tension, which share an equal angle simplifies to 2 * T * Cos45 as you resolve with equal tension due to the modelling assumptions made .

Our answers are same. so it does not matter in what way we did it. I apologise.

 

[holloz17]

can someone explain how they found the time of the motorcycle?? i worked out the time for the car and then added 10 seconds on.... i used u=0, v=22, s=990, and i worked out acceleration with v^2=u^2 + 2as, giving 22^2 = 2 x 990a, and a came out as 0.24, then i used v=u+at, and t came out as 92??? :/

 

[Hadi Murtaza]

guys u ppl dont know me but this was da worst ppr i hav ever attempted in my life......last year i topped but i dont know wat will happen dis year...not only me but we r siblings in same class who r both toppers ....v need to keep dis legacy....r teachers expect us to get full marks...but HOW??????

It doesn't matter how well u did according to the total marks, if were da best amongst all u'r class members, then u'll still be first and if indeed M1 wuz harder than most other papers, then hopefully da curve will be lower InshaAllah

 

[Hadi Murtaza]

I did so bad that I feel like like crying . I'll be happy even if I get C or D

Dont worry, trust Allah and know dat u made an effort.

 

[amirjalili]

themass of the plank was 19.2 kg right ?

 

[Hadi Murtaza]

M1 crushed me today ...the paper appeared to be normal but it had all the questions embedded in it to drive me crazy.....saw others having same or similar reaction........

If it indeed wuz harder than most of da other papers then hopefully da curve will be lower this time InshaAllah