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To put it simply... I don't get it.

I'm doing the OCR course and my exam is a week today, but I still can't get my head around integration...

Looking at my notes, I have figured that:

a (acceleration) integrates into v

v (velocity) integrates into s

I don't understand WHY this happens and I've searched the whole web and there is no AS site with anything about integration in the M1 area.

Here's an example question... I have the answers so I'm not interested in them I want to know HOW you worked them out and WHY the logic you apply to them works.

QUESTION:

A particle P moves in a straight line so that, at time t seconds afer leaving a fixed point O, it's acceleration is -1/10t ms/\-2. At time t=0, the velocity of P is Vms/\-1.

(i) Find, by integration, an expression in terms of t and V for the velocity P.

(ii) Find the value of V, given that P is instantaneously at rest when t=10.

(iii) Find the displacement of P from 0 when t=10.

Thankyou for your time.

I'm doing the OCR course and my exam is a week today, but I still can't get my head around integration...

Looking at my notes, I have figured that:

a (acceleration) integrates into v

v (velocity) integrates into s

I don't understand WHY this happens and I've searched the whole web and there is no AS site with anything about integration in the M1 area.

Here's an example question... I have the answers so I'm not interested in them I want to know HOW you worked them out and WHY the logic you apply to them works.

QUESTION:

A particle P moves in a straight line so that, at time t seconds afer leaving a fixed point O, it's acceleration is -1/10t ms/\-2. At time t=0, the velocity of P is Vms/\-1.

(i) Find, by integration, an expression in terms of t and V for the velocity P.

(ii) Find the value of V, given that P is instantaneously at rest when t=10.

(iii) Find the displacement of P from 0 when t=10.

Thankyou for your time.

Eye Jay

To put it simply... I don't get it.

I'm doing the OCR course and my exam is a week today, but I still can't get my head around integration...

Looking at my notes, I have figured that:

a (acceleration) integrates into v

v (velocity) integrates into s

I don't understand WHY this happens and I've searched the whole web and there is no AS site with anything about integration in the M1 area.

Here's an example question... I have the answers so I'm not interested in them I want to know HOW you worked them out and WHY the logic you apply to them works.

QUESTION:

A particle P moves in a straight line so that, at time t seconds afer leaving a fixed point O, it's acceleration is -1/10t ms/\-2. At time t=0, the velocity of P is Vms/\-1.

(i) Find, by integration, an expression in terms of t and V for the velocity P.

(ii) Find the value of V, given that P is instantaneously at rest when t=10.

(iii) Find the displacement of P from 0 when t=10.

Thankyou for your time.

I'm doing the OCR course and my exam is a week today, but I still can't get my head around integration...

Looking at my notes, I have figured that:

a (acceleration) integrates into v

v (velocity) integrates into s

I don't understand WHY this happens and I've searched the whole web and there is no AS site with anything about integration in the M1 area.

Here's an example question... I have the answers so I'm not interested in them I want to know HOW you worked them out and WHY the logic you apply to them works.

QUESTION:

A particle P moves in a straight line so that, at time t seconds afer leaving a fixed point O, it's acceleration is -1/10t ms/\-2. At time t=0, the velocity of P is Vms/\-1.

(i) Find, by integration, an expression in terms of t and V for the velocity P.

(ii) Find the value of V, given that P is instantaneously at rest when t=10.

(iii) Find the displacement of P from 0 when t=10.

Thankyou for your time.

I'm not sure why it happens, but someone will probably tell you....as for the question:

I'm not too sure what the acceleration is....I'm taking it as (-1/10)t rather than this -1/(10t) - i hope it's right

(i) v = INT a.dt = -1/10 [ INT t dt]

v = (-t^2/20) + c

t=0, v=V

so V= 0 + c, c=V

v = V - (t^2/20)

(ii) t=10, v=0

so, 0 = V - (100/20)

0 = V - 5

so V = 5 m/s

(iii) you can now re-write v as: v = 5 - (t^2/20)

x = INT v.dt

x = INT[5 - (t^2/20)]dt

x = 5t - (t^3/60) + k

t=0, x=0, so k=0

x = 5t - (t^3/60)

t=10, x = 50 - (1000/60)

x = (100/3) m

Eye Jay

To put it simply... I don't get it.

I'm doing the OCR course and my exam is a week today, but I still can't get my head around integration...

Looking at my notes, I have figured that:

a (acceleration) integrates into v

v (velocity) integrates into s

I don't understand WHY this happens and I've searched the whole web and there is no AS site with anything about integration in the M1 area.

I'm doing the OCR course and my exam is a week today, but I still can't get my head around integration...

Looking at my notes, I have figured that:

a (acceleration) integrates into v

v (velocity) integrates into s

I don't understand WHY this happens and I've searched the whole web and there is no AS site with anything about integration in the M1 area.

Velocity is defined as the rate of change of displacement, so v = ds/dt (think about speed = distance/time, it's the same here).

Acceleration is defined as the rate of change of velocity, so a = dv/dt (think about acceleration = change in velocity/time). Obviously integrating both those expressions wrt time will give you displacement and velocity.

- Media Studies and Communication Student Laptop!!
- Edexcel A2 Mathematics: Core Mathematics C4 6666 01 - 22 June 2018 [Exam Discussion]
- Numbers of Arrangements
- Has anyone done Cambridge for IAL Maths and Edexcel for IAL Further Maths?
- How should I prepare for the STEP?
- A level chemistry help please
- Do colleges care about what modules I took for my IAL maths and further maths?
- the issac physics astronomy question
- what ipad for uni! 12.9 inch or 11 inch?
- what laptop should i get?
- ChiefKwen's Journey to 4A*S and OCRE
- what ipad shall i get!
- Device for 6th form and GCSEs
- What units do I need for Edexcel IAL or IAS Further Maths
- What does awrt mean in mark schemes???
- Maths Edexcel A level
- Amount of Substance question
- SFE
- Weighing at Sea
- A Chain Sliding Through a Tube

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can someone please explain what principle domain is and why the answer is a not c?Maths

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