Hey there! Sign in to join this conversationNew here? Join for free
 You are Here: Home >< Maths

# Edexcel AS/A2 Mathematics M1 - 8th June 2016 - Official Thread watch

1. Is there any papers you should do last minute any questions. I have done gold papers and all past papers from 2007-2015 but im still scared, that i could do stupid mistakes in the exam
2. (Original post by candol)
In this question you can use vector PQ from part b to help you. This vector must equate to k(-I + j) where k is just a constant.
Now equate the i's and the j's to equal -k and k respectively.
Then combine equations and solve for t
Thanks! I got the right answer
3. (Original post by candol)
the forces are not acting in the same direction. You need to draw a force diagram (triangle in this case), showing the forces in series (one after the other). The resultant is the diagonal joining the start point to the end point
In the first part to the solution to this question, it's stated that F = F1 + F2. Why is it possible to state this?

Attachment 545345545347
Attached Images

4. When a vector is A relative to B, is that the same as the vector BA? or is it the vector AB?
5. (Original post by candol)
In this question you can use vector PQ from part b to help you. This vector must equate to k(-I + j) where k is just a constant.
Now equate the i's and the j's to equal -k and k respectively.
Then combine equations and solve for t
so is t=1/3 in dat last question
6. (Original post by Tim73)
Thanks! I got the right answer
is da answer t=1/3??
7. (Original post by saitama kun)
is da answer t=1/3??
No it's 1/2 so 2:30pm
8. (Original post by candol)
In this question you can use vector PQ from part b to help you. This vector must equate to k(-I + j) where k is just a constant.
Now equate the i's and the j's to equal -k and k respectively.
Then combine equations and solve for t
Hang on I'm still a bit confused where did you get the k(-i +j) from in the first place?
9. (Original post by Don Pedro K.)
In the first part to the solution to this question, it's stated that F = F1 + F2. Why is it possible to state this?

Attachment 545345545347
The resultant of forces given as vectors is simply the vectors added together.
10. (Original post by Someboady)
The resultant of forces given as vectors is simply the vectors added together.
Ah yeah whoops I forgot that in the previous question when I added the forces together to get the resultant, they weren't vectors so I wrongly assumed they were going in the same direction instead of resolving!

So with vectors you don't need to resolve, you can just add them together?
11. (Original post by Don Pedro K.)
Ah yeah whoops I forgot that in the previous question when I added the forces together to get the resultant, they weren't vectors so I wrongly assumed they were going in the same direction instead of resolving!

So with vectors you don't need to resolve, you can just add them together?
Since vectors have a direction there is no need to resolve in any particular direction thus you can just add them together.
12. (Original post by Someboady)
Since vectors have a direction there is no need to resolve in any particular direction thus you can just add them together.
AH that makes sense yes haha Thanks a lot! I owe you all big time if I (hopefully) do well in the exam tomorrow hahaha
13. (Original post by Tim73)
Hang on I'm still a bit confused where did you get the k(-i +j) from in the first place?
Put more simply. You know that j components act North and i components act east. Thus negative j components act south and negative i components act west. Hence the above equation. Thus (-i + j) represents North West and k is simply a constant that provides the "magnitude" per say.
14. (Original post by Someboady)
Put more simply. You know that j components act North and i components act east. Thus negative j components act south and negative i components act west. Hence the above equation. Thus (-i + j) represents North West and k is simply a constant that provides the "magnitude" per say.
Ah that makes sense, thank you
15. Can we be asked to label thrust in diagrams? If so then what direction does it act in?

Posted from TSR Mobile
16. (Original post by Tim73)
Does anyone know how to use the information when something is north west or south west etc in a vectors question? I know it's 45 degrees but idk how that helps.
I can do it when it's north or south or east or west as I know the i/j components are the same. But when it's like north west or something it confuses me
Example question:
Attachment 545297
Hey I just did this question can you please tell me which paper this is from so I can check the mark scheme... Thanks
17. (Original post by Clovers)
Can we be asked to label thrust in diagrams? If so then what direction does it act in?

Posted from TSR Mobile
Thrust is opposite to tension.

Tension:

O---->-------<-----O

Thrust:

O<---->O
18. (Original post by wenogk)
Hey I just did this question can you please tell me which paper this is from so I can check the mark scheme... Thanks
It's the first Gold paper (Edexcel)
https://2802a3b1a650824d2586fd3336bd...%20Edexcel.pdf

The mark scheme is at the back
19. Got an E in this last year so resitting
20. (Original post by Tim73)
It's the first Gold paper (Edexcel)
https://2802a3b1a650824d2586fd3336bd...%20Edexcel.pdf

The mark scheme is at the back
Thank you!

(Original post by Clovers)
Can we be asked to label thrust in diagrams? If so then what direction does it act in?

Posted from TSR Mobile
This question uses "thrust" check out examsolutions video for that question(Q6)
http://www.examsolutions.net/a-level...e/paper.php#Q6

Reply
Submit reply
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: October 25, 2016
Today on TSR

### Struggling to get going with your revision?

Get going with the all day revision thread

### Uni strikes! How do they affect you?

Discussions on TSR

• Latest
Poll
Useful resources

## Make your revision easier

Can you help? Study help unanswered threadsStudy Help rules and posting guidelinesLaTex guide for writing equations on TSR

## Groups associated with this forum:

View associated groups
Discussions on TSR

• Latest

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.