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Q: A particle may be defined as an object which has:
  • A. Only mass
  • B. Only size
  • C. Only shape
  • D. Both mass and size
Correct Answer: Option A - Particle :-A particle is an object which occupies negligible space but has some mass, when a body is assumed to be a particle the principles of mechanics reduce to an implied form, since the geometry of the body is not involved in the analysis.
A. Particle :-A particle is an object which occupies negligible space but has some mass, when a body is assumed to be a particle the principles of mechanics reduce to an implied form, since the geometry of the body is not involved in the analysis.

Explanations:

Particle :-A particle is an object which occupies negligible space but has some mass, when a body is assumed to be a particle the principles of mechanics reduce to an implied form, since the geometry of the body is not involved in the analysis.