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#1 2015-07-06 17:14:10

math9maniac
Member
From: Tema
Registered: 2015-03-30
Posts: 443

Mechanics

Hello;

Please I need/want a comprehensive notes on Mechanics, which is also simple and not difficult to understand.

My teacher at school is not making things easy for us at all. No one understands when he teaches. He's just a scholar not a teacher. Uggh!

Many thanks in advance.


Only a friend tells you your face is dirty.

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#2 2015-07-06 17:15:45

math9maniac
Member
From: Tema
Registered: 2015-03-30
Posts: 443

Re: Mechanics

His notes are full of irrelevant stuff. I'm just trying to manage. I don't understand some of the formulas and which to use at whatever time.


Only a friend tells you your face is dirty.

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#3 2015-07-12 17:23:21

math9maniac
Member
From: Tema
Registered: 2015-03-30
Posts: 443

Re: Mechanics

Hello everyone;

I have waited patiently for about a week for a response. Not putting pressure on anyone but this is only a gentle reminder. Not finding something that suits me, on Google.

Many thanks for your help and response.
             math9maniac.


Only a friend tells you your face is dirty.

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#4 2015-07-12 23:35:12

zetafunc
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Registered: 2014-05-21
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Re: Mechanics

We can't give you what you need, because you haven't been specific enough. "Mechanics" is a very broad term: why not tell us exactly what is covered in your syllabus?

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#5 2015-07-12 23:56:59

Agnishom
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From: Riemann Sphere
Registered: 2011-01-29
Posts: 24,974
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Re: Mechanics

Possibly Newtonian Mechanics, or maybe Lagrangian


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.

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#6 2015-07-13 00:04:03

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Mechanics

He can post a problem he is having, then it is easier to help.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#7 2015-07-13 00:07:54

Agnishom
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From: Riemann Sphere
Registered: 2011-01-29
Posts: 24,974
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Re: Mechanics

It takes some time to get used to mechanics.

The next knows Lagrangian mechanics


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.

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#8 2015-07-13 00:18:37

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Mechanics

I know Lagrangian multipliers.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#9 2015-07-13 00:43:51

Agnishom
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From: Riemann Sphere
Registered: 2011-01-29
Posts: 24,974
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Re: Mechanics

What are they?


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.

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#10 2015-07-13 00:44:41

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Mechanics

A nifty way to solve maxima and minima problems that have constraints.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#11 2015-07-13 00:49:53

Agnishom
Real Member
From: Riemann Sphere
Registered: 2011-01-29
Posts: 24,974
Website

Re: Mechanics

Fancy name for a list of partial differentials?


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.

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#12 2015-07-13 00:53:03

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Mechanics

Possibly, but the good part is that M can be made to do the whole process.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#13 2015-07-13 00:59:50

Agnishom
Real Member
From: Riemann Sphere
Registered: 2011-01-29
Posts: 24,974
Website

Re: Mechanics

Hmm. Can they used for LPP too?


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.

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#14 2015-07-13 01:01:28

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Mechanics

Maybe but there are easier ways to do those.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#15 2015-07-13 01:05:04

Agnishom
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From: Riemann Sphere
Registered: 2011-01-29
Posts: 24,974
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Re: Mechanics

But can you help me find the largest subset in Range[100] such that for every a,b in the subset, a+b isn't?


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.

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#16 2015-07-13 01:05:53

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Mechanics

M can help you with that.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#17 2015-07-13 01:08:50

Agnishom
Real Member
From: Riemann Sphere
Registered: 2011-01-29
Posts: 24,974
Website

Re: Mechanics

How?


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.

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#18 2015-07-13 01:12:11

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Mechanics

Pick a subset and try it. Count it if it works. Repeat until subsets are exhausted.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#19 2015-07-13 01:56:44

Agnishom
Real Member
From: Riemann Sphere
Registered: 2011-01-29
Posts: 24,974
Website

Re: Mechanics

for Range[n], the efficiiency of the algorithm is in O(2^n)


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.

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#20 2015-07-13 09:25:47

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Mechanics

That is not too bad for a small number.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#21 2015-07-13 10:02:03

math9maniac
Member
From: Tema
Registered: 2015-03-30
Posts: 443

Re: Mechanics

Ok. Thanks for replying. It's in two parts:
1) Statics - Scalar and vector quantities (I guess I have some knowledge about this one), coplanar forces acting at a point,  equilibrium of particles, moment of forces
2) Concepts of motion - displacement, (relative) velocity, and acceleration; equations of motion; Newton's laws of motion; momentum and impulse; friction; motion along inclined planes; further applications of Newton's laws of motion

There you are. Thanks for your abundant help.


Only a friend tells you your face is dirty.

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#22 2015-07-13 10:04:44

math9maniac
Member
From: Tema
Registered: 2015-03-30
Posts: 443

Re: Mechanics

Please I'm not purely a science student so I may understand it more slowly than an actual science student.


Only a friend tells you your face is dirty.

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#23 2015-07-13 10:08:40

math9maniac
Member
From: Tema
Registered: 2015-03-30
Posts: 443

Re: Mechanics

Hi bobbym;

bobbym wrote:

He can post a problem he is having, then it is easier to help.

Who's "he"?


Only a friend tells you your face is dirty.

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#24 2015-07-13 10:13:39

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Mechanics

Sorry, I meant the OP.


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#25 2015-07-13 12:48:10

Agnishom
Real Member
From: Riemann Sphere
Registered: 2011-01-29
Posts: 24,974
Website

Re: Mechanics

I like this books:

Feynman's Lectures
Resnick Halliday Walker
David Morrin's Introduction to Classical Mechanics
matterandlight.com


'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'
'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'
I'm not crazy, my mother had me tested.

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