- #1
I Can You Explain: Why Is It One Sec?
- I
- Thread starter AyoubEd
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- Fluids Thermodynamcics
AI Thread Summary
The discussion clarifies the concept of "per second" as a rate rather than simply "one second." It explains that momentum is defined as mass multiplied by velocity, and when considering momentum per second, it involves dividing by time. The relationship between velocity and time leads to the definition of acceleration. The force is described as the change in momentum per unit time, expressed through the equation F=ma, where acceleration is calculated as the change in velocity over time. This foundational understanding of momentum and force is essential in physics.
- #2
CWatters
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Firstly it doesn't say "one second" it says "per second" which is a rate.
Momentum = mass * velocity
so
Momentum per second would be equal to mass * velocity / time
Velocity/time = acceleration.
can you do the rest?
Momentum = mass * velocity
so
Momentum per second would be equal to mass * velocity / time
Velocity/time = acceleration.
can you do the rest?
- #3
NihalRi
- 134
- 12
Force is the change in momentum per unit time.
F=ma (m=mass a=acceleration)
a= (vf-vi)/t
Replacing a into the force equation:
F=m (vf-vi)/t
Which is change in momentum per unit time.
F=ma (m=mass a=acceleration)
a= (vf-vi)/t
Replacing a into the force equation:
F=m (vf-vi)/t
Which is change in momentum per unit time.
- #4
AyoubEd
- 10
- 2
So I know that electrons are fundamental, there's no 'material' that makes them up, it's like talking about a colour itself rather than a car or a flower. Now protons and neutrons and quarks and whatever other stuff is there fundamentally, I want someone to kind of teach me these, I have a lot of questions that books might not give the answer in the way I understand. Thanks
i want to just test a linear generator with galvanometer , the magnet is N28 and the wire (Cu) is of 0.6mm thikness and 10m long , but galvanometer dont show anthing ,
The core is PLA material (3d printed)
The magnet size if 28mm * 10mm * 5mm
If the universe is fundamentally probabilistic, and all possible outcomes are realized in some branch of the multiverse, does that invalidate the concept of scientific inquiry? If knowledge is merely a description of one particular branch of reality, does it have any inherent value?
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