Math Is Fun Forum
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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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#5 2015-07-12 23:56:59
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
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
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
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
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
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
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
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
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- From: Tema
- Registered: 2015-03-30
- Posts: 443
Re: Mechanics
Hi bobbym;
He can post a problem he is having, then it is easier to help.
Who's "he"?
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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
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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