11I am sure of wat I am writing @ Vivek :P
I was reading Mechanics where it was said that,
Particle is a hypothetical mass-point that has no size.
Can you please explain clearly...
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6 Answers
11as far as I know....we always take the centre of mass as a particle........
now...some time it is consider that the whole mass of the object is situated at a point....and we know a point has no dimension.........
71@carlos. Kindly do make posts only where atleast you are sure 50% of what are you talking about.
@Srikanth.
In many cases or problems of physics, size of the system particles become significant for many effects. So in general case, when we do have to neglect such influences we consider that mass to be a particle i.e., " mass-point that has no size "
1So here, no size means the object which has been considered a particle has a size which is negligible or does it mean without any size??
Which is not possible...!
71It measn size effects are negligible and only mass effects are to be considered... That's why it is hypothetical.
11in case of pure translational motion we generally consider external agent acting on the center of mass.....that means it acts at a single point where we think that at that coordinate the whole mass is situated....