Difference between revisions of "Mass"
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# inertial. F = ma, resistance to acceleration | # inertial. F = ma, resistance to acceleration | ||
# gravitational. F = m<sub>1</sub>m<sub>2</sub>r<sup>2</sup> | # gravitational. F = m<sub>1</sub>m<sub>2</sub>r<sup>2</sup> | ||
| + | Momentum Additionally, mass relates a body's momentum p to its linear velocity v: | ||
| + | |||
| + | � | ||
| + | = | ||
| + | � | ||
| + | � | ||
| + | \mathbf {p} =m\mathbf {v} , | ||
| + | and the body's kinetic energy K to its velocity: | ||
| + | |||
| + | � | ||
| + | = | ||
| + | 1 | ||
| + | 2 | ||
| + | � | ||
| + | | | ||
| + | � | ||
| + | | | ||
| + | 2 | ||
| + | K={\dfrac {1}{2}}m|\mathbf {v} |^{2}. | ||
==References== | ==References== | ||
[[Category: Physics]] | [[Category: Physics]] | ||
Revision as of 22:15, 18 July 2023
Full Title or Meme
Mass is the concept that enables us to say that an object (or an idea) is weighty or massive.
Context
- Issac Newton needed a mathematical definition of what caused gravity and so defined it thus[1]
The quantity of matter is the measure of the same, arising from its density and bulk conjucntly ... It It is this that I mean hereafter everywhere under the name body, or mass. And the same is known by the weight of each body, for it is proportional to the weight, as i have found by experiments on pendulums, very accurately made, which shall be shown hereafter.
- There are these types of mass as commonly defined:
- rest,
- inertial. F = ma, resistance to acceleration
- gravitational. F = m1m2r2
Momentum Additionally, mass relates a body's momentum p to its linear velocity v:
� = � � \mathbf {p} =m\mathbf {v} , and the body's kinetic energy K to its velocity:
� = 1 2 � | � | 2 K={\dfrac {1}{2}}m|\mathbf {v} |^{2}.
References
- ↑ Issac Newton Mathematical Principles
