This discussion is now closed.

Check out other Related discussions

The Edexcel M1 (16/05/12 - AM) Revision Thread

For some reason im actually starting to like M1 !! Eventhough ive been getting Us' D's E's in my mini tests at school! These were months ago so hopefully ive improved! I just dont want any pulley questions!

Reply 141

Jack_Smith

8

Original post by nm786

can someone please help me on a past paper question?
here's the link: http://www.edexcel.com/migrationdocuments/QP%20GCE%20Curriculum%202000/June%202011%20-%20QP/6677_01_que_20110518.pdf
it's question 7biii that i'm stuck with i've got p=i+j+t(2i-3j) and q=-2j+(3i+4j).
i don't know how to do question 7biii, can someone please help?

Vector PQ is Q - P So just minus both the vectors you got from previous answer!

Reply 142

nm786

2

Original post by Jack_Smith

For some reason im actually starting to like M1 !! Eventhough ive been getting Us' D's E's in my mini tests at school! These were months ago so hopefully ive improved! I just dont want any pulley questions!

pulley questions have been on every single m1 paper that i have done so far, so it will definitely come up in the exam

Original post by Jack_Smith

Vector PQ is Q - P So just minus both the vectors you got from previous answer!

i still don't understand, why do you have to do Q-P?

Reply 143

N0body

Does anyone know any good websites to use for revision?

Reply 144

nm786

2

Original post by N0body

Does anyone know any good websites to use for revision?

this is a very useful link: http://www.examsolutions.co.uk/maths-revision/syllabuses/Edexcel/period-1/M1/module.php
and do lots and lots of past papers.

Reply 145

Jack_Smith

8

Original post by nm786

pulley questions have been on every single m1 paper that i have done so far, so it will definitely come up in the exam

i still don't understand, why do you have to do Q-P?

You have to subrtract like any normal subtraction...So you would minus the vectors from eachother and in the end you would get a final vector!

This should be the answer you got:
p = (i + j) + t(2i − 3j) M1 A1
q = (−2j) + t(3i + 4j) A1
PQ <<< to get this you have to do this>>>> q − p
Your answer should be this >>>> (−i − 3j) + t(i + 7j)
Hope you get it! It took me forever to understand vectors! So dw just do a couple of question review exercises are really helpful

Reply 146

arnab

11

Can some one help me with this question? I got part1 right but i dont get why they used suvat equation for part b lol

Can someone explain that to me please?

Uploaded with ImageShack.us

Reply 147

NutterFrutter

Original post by arnab

Can some one help me with this question? I got part1 right but i dont get why they used suvat equation for part b lol

Can someone explain that to me please?

Uploaded with ImageShack.us

In part b all your doing is finding the position vector of A after 3 seconds, they're using SUVAT to find the displacement after 3 seconds. Add this onto the initial position vector and you have the position vector when they collide.

Reply 148

nm786

2

Original post by NutterFrutter

In part b all your doing is finding the position vector of A after 3 seconds, they're using SUVAT to find the displacement after 3 seconds. Add this onto the initial position vector and you have the position vector when they collide.

hi, could you please help me?
here's the link: http://www.edexcel.com/migrationdocuments/QP GCE Curriculum 2000/June 2011 - QP/6677_01_que_20110518.pdf
it's question 7biii that i'm stuck with i've got p=i+j+t(2i-3j) and q=-2j+(3i+4j).
i don't know how to do question 7biii?
please help..

Reply 149

arnab

11

Original post by NutterFrutter

In part b all your doing is finding the position vector of A after 3 seconds, they're using SUVAT to find the displacement after 3 seconds. Add this onto the initial position vector and you have the position vector when they collide.

i am still a a a bit confused. Can you tell me, Is position vector the distance a particle has travelled after a certain time or is it some thing else?

Thanks for helping me btw

Reply 150

Sarabande

15

Original post by nm786

hi, could you please help me?
here's the link: http://www.edexcel.com/migrationdocuments/QP GCE Curriculum 2000/June 2011 - QP/6677_01_que_20110518.pdf
it's question 7biii that i'm stuck with i've got p=i+j+t(2i-3j) and q=-2j+(3i+4j).
i don't know how to do question 7biii?
please help..

To find distances between position vectors. Take the smaller vector away from the larger vector. I've done this question before, so off the top of my head I think PQ = q - p

Reply 151

Xtrapolation

1

Try M4/M5... it's pretty nuckin' futs! :eek4:

I look back at M1 last year with fond, fond memories.

Good luck all the same!

Reply 152

raheem94

13

Original post by Sarabande

To find distances between position vectors. Take the smaller vector away from the larger vector. I've done this question before, so off the top of my head I think PQ = q - p

This is a general rule,

\displaystyle \vec{PQ}=\vec{OQ}-\vec{OP}

So any vector

\vec{XY}=\vec{OY}-\vec{OX}

Reply 153

raheem94

13

Original post by arnab

Can some one help me with this question? I got part1 right but i dont get why they used suvat equation for part b lol

Can someone explain that to me please?

In part 'b' we use suvat to find the displacement travelled in 3 seconds. Then we just need to add the initial displacement with the one found using suvat, to get the position vector.

Reply 154

nm786

2

Original post by Sarabande

To find distances between position vectors. Take the smaller vector away from the larger vector. I've done this question before, so off the top of my head I think PQ = q - p

what do you mean by this? i don't understand :frown:

Reply 155

Sarabande

15

Original post by nm786

what do you mean by this? i don't understand :frown:

Raheem explained it better. The distance vector is PQ. So do q-p for the distance between them.

Reply 156

user2020user

16

So how is everybody finding M1 so far ?
Also, a major thank you to whoever it was that uploaded the Mechanics_1.rar with all of the past papers !

Reply 157

S1L3NTPR3Y

13

Original post by nm786

hi, could you please attach june 2011 question paper (exactly like these-without the lines and stuff) and the mark scheme too?
thank you :smile:

Sorry I only have the ones with lines taken out up to Jan '11 here is June 11 but its 24 pages, just open as pdf on computer and do on a sheet of lined paper (only takes about 1)? http://www.edexcel.com/migrationdocuments/QP%20GCE%20Curriculum%202000/June%202011%20-%20QP/6677_01_que_20110518.pdf

Here are some others I have too:

(edited 12 years ago)

M12008JANSV.pdf281.4KB

M12008JANMS.pdf291.4KB

M12008JUNSV.pdf206.2KB

M12008JUNMS.pdf267.2KB

Reply 158

BobLoblawLawBlog

16

Original post by Jack_Smith

For some reason im actually starting to like M1 !! Eventhough ive been getting Us' D's E's in my mini tests at school! These were months ago so hopefully ive improved! I just dont want any pulley questions!

You would have liked my exam (jan 2012) There weren't any pulley questions and there was only one force question ... although there were two vector questions which I wasn't too happy about.