Linked Questions
13 questions linked to/from History of interpretation of Newton's first law
9
votes
1
answer
2k
views
How does Newton's first law asserts the existence of inertial frames? [duplicate]
Recently I've seem here one answer telling that Newton's first law really assures the existence of inertial reference frames. But how is that? I really can't see it. As I know, Newton's first law says:...
- 37.4k
1
vote
1
answer
441
views
Statement of the first law of motion and definition of force [duplicate]
Newton's first law of motion states,"Every body continues in its state of rest, or of uniform motion in a right line, unless it is compelled to change that state by forces impressed upon it."
Again ...
- 11
48
votes
5
answers
13k
views
Why is Newton's first law necessary?
Newton's second law says $F=ma$.
Now if we put $F=0$ we get $a=0$ which is Newton's first law.
So why do we need Newton's first law ?
Before asking I did some searching and I got this: Newtons first ...
- 1,867
50
votes
5
answers
10k
views
Norton's dome and its equation
Norton's dome is the curve $$h(r) = \frac{2}{3g} r ^{3/2}.$$ Where $h$ is the height and $r$ is radial arc distance along the dome. The top of the dome is at $h = 0$.
Via Norton's web.
If we put a ...
- 1,751
15
votes
6
answers
13k
views
Can one of Newton's Laws of motion be derived from other Newton's Laws of motion?
Can one derive Newton's
second and third laws from the first law or
first and third laws from the second law or
first and second laws from the third law
I think Newton's laws of motions are ...
- 574
9
votes
6
answers
3k
views
Is Newton's first law something real or a mathematical formalism?
Why do objects always 'tend' to move in straight lines? How come, everytime I see a curved path that an object takes, I can always say that the object tends to move in a straight line over 'small' ...
- 309
6
votes
3
answers
1k
views
Newton's First Law of Motion; Empirical Aspects
Newton's first law states that in an inertial frame, a body at rest continues to be at rest, and a body in constant rectilinear motion continues its motion, unless an external force is applied upon ...
- 1,221
7
votes
3
answers
1k
views
Why didn't Newton just propose the 2nd Law and leave it at that?
Why didn't Newton just propose the 2nd Law ($F=\dot{p}$) and leave it at that? The 2nd Law implicitly contains the first, doesn't it? If so, it seems he wasn't following his own Rule #1 of Book 3 of ...
- 2,166
2
votes
3
answers
488
views
Does Newton's first law state something substantive, or is it merely describing a convention?
Newton's first law is often said to define what an inertial frame is - namely, a reference frame in which a body not acted on by a force will move with constant velocity. In other words, a frame where ...
- 29
4
votes
1
answer
574
views
Equivalences and derivations in Newtonian/Classical Mechanics
In Newtonian mechanics there are several "laws" and axioms:
Newton's Laws
Conservation of: Mass, Energy, Momentum, Angular Momentum
I know some are equivalent (e.g., conservation of momentum and ...
- 547
-2
votes
3
answers
495
views
What does Newton's first law of motion want to say? [closed]
Newton's first law of motion says
"A body will remain in a state of rest or in uniform motion in straight line, unless acted by an external force."
So if a body is accelerated or moved uniformly ...
1
vote
1
answer
128
views
Are there 2 laws of motion or only 1?
It seems clear that Newton's first law is a special case of his second. Although perhaps people might argue that it emphasizes the centrality of inertial frames.
But is the third law also just a ...
- 1,562
4
votes
0
answers
99
views
Where do Newton's laws come from? [duplicate]
I have studied physics for about three years at university but after these years I still don't know how Newton derived his laws.
I know that he tried to find the best model to describe the motions ...
- 335