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# Mega A Level Maths Thread MK II Watch

1. (Original post by nukethemaly)
Has anyone got a prediction paper they can post for C1?
What's a prediction paper?
2. (Original post by joostan)
Because the would be different.
ah yea that makes since

thanks man
3. (Original post by TH3-FL45H)
What's a prediction paper?
take a wild guess
4. (Original post by upthegunners)
ah yea that makes since

thanks man
no prob
5. (Original post by TH3-FL45H)
What's a prediction paper?
Someone called TheGoldenRatio uploaded one in Jan the night before the exam, so I was just wondering if someone's done anything like that again for this exam.
6. For C1 it's basically the same questions ever-so-slightly changed? Sometimes they're even in the same order.
7. (Original post by joostan)
no prob
do you have any m1 tips?

I often find i over complicate things

I see an 8 mark question and just think it cannot be as simple as i think..

how do I over come this? thanks, oliver
8. (Original post by upthegunners)
do you have any m1 tips?

I often find i over complicate things

I see an 8 mark question and just think it cannot be as simple as i think..

how do I over come this? thanks, oliver
Diagram. Always draw a diagram with all the forces displayed, and work out what you're interested in.
DJMayes posted some tips, there's a link in the OP, I recommend you take a look
9. nerves have kicked in for M1

Need help with this:

A particle P is moving so that its velocity, , after seconds is given by

Initially P is at rest and is a displacment of 3m from a fixed point O.

Find when .. okay so .

ii) Find an expression for the displacment of P at any time .

Now this is where I need help!

Find the distance travelled by the particle before it returns to its intial position. thanks

EDIT: 69th post ROFL
10. (Original post by upthegunners)
nerves have kicked in for M1

Need help with this:

A particle P is moving so that its velocity, , after seconds is given by

Initially P is at rest and is a displacment of 3m from a fixed point O.

Find when .. okay so .

ii) Find an expression for the displacment of P at any time .

Now this is where I need help!

Find the distance travelled by the particle before it returns to its intial position. thanks

EDIT: 69th post ROFL
Initial position => displacement = 0. Find t at this point to start with.
11. (Original post by CD315)
Initial position => displacement = 0. Find t at this point to start with.
So you set the expression for displacment equal to zero and solve?
12. anyone got any resources for c3 and c4? apart from solomon/elmwood ?
13. How would you find the area of region R?

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14. (Original post by upthegunners)
So you set the expression for displacment equal to zero and solve?
You made a mistake in your integration by the way - you integrated instead of

EDIT: In my last post - I mean set the displacement equal to 3 instead of 0, as this is where it began.
15. (Original post by kashagupta)
How would you find the area of region R?

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Calculate area under triangle...

Then remove area under curve (integrate)
16. (Original post by kashagupta)
How would you find the area of region R?

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Area of a triangle with third side directly below N, then subtract the area beneath the curve between M and directly below N.
17. (Original post by CD315)
You made a mistake in your integration by the way - you integrated instead of

EDIT: In my last post - I mean set the displacement equal to 3 instead of 0, as this is where it began.
so far I have got:

when v=0 t=4/3 amd t=0

when t=0 d=3

when t=4/3 d=49/27

what other times do we take? thanks man
18. (Original post by L'Evil Fish)
Calculate area under triangle...

Then remove area under curve (integrate)
Ahh got it, thanks! Don't know why I just wasn't seeing it!

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19. (Original post by joostan)
Area of a triangle with third side directly below N, then subtract the area beneath the curve between M and directly below N.
Thanks

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20. (Original post by upthegunners)
so far I have got:

when v=0 t=4/3 amd t=0

when t=0 d=3

when t=4/3 d=49/27

what other times do we take? thanks man
From your integration, you should have

Now, find out the time at which the displacement is the same as it's original - i.e;

When I solve this, I get (correct me if I've made a mistake).

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