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Q: What is a free-body diagram?
  • A. It’s a sketch of a moving body that shows internal forces of the body and reaction forces
  • B. It’s a sketch of an undisturbed body that shows external forces of the body
  • C. It’s a sketch of an isolated body that shows external forces of the body and reaction forces
  • D. It’s a sketch of a body in motion that shows bending forces of the body
Correct Answer: Option C - Free-body diagram:-A free body diagram is a useful means of describing and analysing all the forces that act on a body to determine equilibrium according to newton's first law or acceleration according to newton's second low • It is sketch of a an isolated body that shows external forces of the body and reaction forces.
C. Free-body diagram:-A free body diagram is a useful means of describing and analysing all the forces that act on a body to determine equilibrium according to newton's first law or acceleration according to newton's second low • It is sketch of a an isolated body that shows external forces of the body and reaction forces.

Explanations:

Free-body diagram:-A free body diagram is a useful means of describing and analysing all the forces that act on a body to determine equilibrium according to newton's first law or acceleration according to newton's second low • It is sketch of a an isolated body that shows external forces of the body and reaction forces.